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INSTALLATION MANUAL
MANUFACTURED BEAUTIFULLY TM J' a • f l.x � � � I• a � Jri I I 1 F1 Table of Contents INTRODUCTION..........................!............................................................................1 IMPORTANTNOTICES ....................... I.....................................................................................................1 SAFETY..............................................................................................................................................1 RESOURCES..........................................................................................................................................1 FEDERALPREEMPTION .....................1.............................................................................................2 DEFINITIONS.......................... ..............!.................... . . ............. .................................................................2 ENGINEER'S STAMP............................L.....................................................................................................3 SYMBOLS USED IN THE MANUAL ..........................................................................................................4 ABBREVIATIONS..................................I .1...................................... .:..:.................................................4 ...... ALTERNATIVE TIE -DOWN AND/OR FOUNDATION SYSTEMS...............................................................5 I DISPLAY AND STORAGE OF THE HOME.................................................................................................5 GETTINGSTARTED......................!..........................................................................6 I STEP 1 LOCATE THE DATA PLATE ....................................................................................................6 STEP2. CONFIRM WIND ZONE ............................................................................................................6 STEP 3. CONFIRM THERMAL ZONE....................................................................................................7 STEP 4. CONFIRM ROOF -LOAD ZONE.................................................................................................8 STEP 5. CHECK LOCAL CODES AND SECURE PERMITS..................................................................9 PREPARETHE SITE ....................... !.......................................................................10 STEP 1. PLAN SITE ACCESS.............1.................................................................................................10 STEP 2. DETERMINE HOME LOCAT19N AND LAYOUT.....................................................................10 STEP 3. CLEAR AND GRADE THE SITE.............................................................................................11 STEP 4. DETERMINE SOIL CONDITIONS...................................................................................:........11 STEP 5. DETERMINE SOIL -BEARING CAPACITY AND FROST LINE...............................................12 STEP 6. DETERMINE GROUND ANCHOR HOLDING CAPACITY......................................................14 INSTALLFOOTINGS ....................... !...................................................................... 15 STEP 1. DESIGN POINT LOAD SUPPO'RTS........................................................................................15 STEP 2. DESIGN FRAME SUPPORTS (Homes Without Perimeter Blocking)..................................19 STEP 3. DESIGN FRAME AND PERIMETER SUPPORTS (Homes With Perimeter Blocking) .........20 STEP 4. SELECT FOOTING MATERIALS............................................................................................22 STEP 5. SIZE FOOTINGS.......................;...............................................................................................22 STEP6. INSTALL FOOTINGS..............................................................................................................24 CONSTRUCT FOUNDATIONS.........:..................................................................... 26 STEP 1. OBTAIN A FOUNDATION DESIGN................................................................................a........26 STEP2. EXCAVATE ................................ !.............................................................................................. 26 STEP 3. CONSTRUCT THE FOOTING OR SLAB.................................................................................26 STEP 4. CONSTRUCT THE PERIMETER WALL..................................................................................26 STEP 5. INSTALL INTERIOR SUPPORTS............................................................................................27 i STEP 6. DAMP PROOF FOUNDATION WALL.....................................................................................27 STEP 7. BACKFILL AND GRADE............'.............................................................................................27 MAN./ACTUAIDManufacturer,'s Installation Manual - June 2015 #0 Conforms to HUD MHCSS 4/27/15 SETTHE HOME...........................:....................:......................................................28 STEP1. PREPARE FOR SET ......... :..................................................................................................... 28 STEP 2. POSITION HOME SECTION....................................................................................................28 STEP3. LIFT HOME ........................ '...................................................................................................... 28 STEP 4. CONSTRUCT PIERS COMPLETE MULTI -SECTION SET.........................................................................34 STEP 1. MARRIAGE LINE ANCHORS..................................................................................................34 STEP 2. REMOVE PROTECTIVE SHIPPING MATERIALS..................................................................34 STEP 3. COMPLETE HINGED ROOF...................................................................................................34 STEP 4. REPAIR OR INSTALL MARRIAGE LINE GASKET................................................................36 STEP 5. POSITION ADDITIONAL HOME SECTIONS..........................................................................37 STEP6. CONNECT FLOORS ........ :........................................................................................................ 37 STEP7. CONNECT ROOF ............ :........................................................................................................ 39 STEP8. CONNECT WALLS.........!........................................................................................................40 STEP 9. ATTACH TAG UNITS ORi (AC) GARAGE...............................................................................42 STEP 10. REMOVE TEMPORARY ITEMS..............................................................................................43 STEP 11. FASTEN HOME TO FOUNDATION........................................................................................43 STEP12. BACKFILL AND GRADE,[ ........................................................................................................43 STEP13. BUILD STAIRS........................................................................................................................43 1 COMPLETE ROOF AND EXTERIOR WALLS.........................................................44 STEP1. COMPLETE ROOF...... I.......................................................................................................44 STEP2. COMPLETE TAG UNIT ROOF................................................................................................46 STEP3. COMPLETE SIDE WAL IS......................................................................................................48 CONNECTCROSSOVERS...... I........................:......................................................49 STEP1. CONNECT DUCTS.......I..........................................................................................................49 STEP 2. CONNECT ELECTRICAL CROSSOVERS..............................................................................51 STEP 3. INSTALL ELECTRICAL BONDING.........................................................................................54 STEP 4. CONNECT WATER LINII ES......................................................................................................54 STEP 5. CONNECT DRAIN, WASTE, AND VENT LINES..........................................55 STEP 6. CONNECT GAS LINESI........................ ........................... 57 STEP 7. CONNECT TELEPHONE AND CABLE TV WIRING ......... ......... ......... ......... 57 STEP 8. CONNECT HOT WATER BASEBOARD HEAT......................................................................57 COMPLETETHE INTERIOR..! ................................................................................58 1 STEP1. ALIGN MARRIAGE WALLS....................................................................................................58 STEP 2. FINISH GYPSUM BOARD.......................................................................................................58 STEP 3. COMPLETE WALL AND CEILING FINISHES........................................................................59 STEP4. COMPLETE CARPET.............................................................................................................59 STEP 5. COMPLETE TRIM ...... I............................................................59 STEP 6. INSTALL SHIP LOOSE ITEMS INSTALL STABILIZING SV STEP 1. DETERMINE ANC STEP 2. DETERMINE TIE -I :M...........................................................................60 LOCATIONS.....................................................................................60 1 CONFIGURATION..........................................................................65 PFS#oz ' Manufacturer's Installation Manual June 2015 „,.,,,�,,,� 1 Conforms to HUD MHCSS 4/27/15 STEP3. SELECT ANCHORS................................................................................................................66 STEP4. INSTALL ANCHORS...............................................................................................................66 STEP5. INSTALL STRAPS ............. :..................................................................................................... 67 STEP 6. TIGHTEN AND ADJUST STRAPS..........................................................................................70 CONNECTUTILITIES ...................lI......................................................................... 71 STEP 1. CONNECT ELECTRICAL SERVICE.......................................................................................71 1 STEP 2. CONNECT WATER SERVICE.................................................................................................74 STEP 3. CONNECT GAS SERVICE.! ....................................................................................................76 STEP 4. CONNECT OIL SERVICE........................................................................................................78 PREPARE APPLIANCES AND EQUIPMENT......................................................... 79 INSTALL AIR CONDITIONER OR HEAT PUMP.......................................................................................79 PREPAREHEATING SYSTEM.............�i...................................................................................................80 INSTALL REMOTE HEATING AND COOLING EQUIPMENT...................................................................80 PREPARE VENTILATION SYSTEM.....11 ...................................................................................................81 PREPARE FUEL -BURNING WATER HEATER........................................................................................81 INSTALL EVAPORATIVE COOLER ...... I .I..................................................................................................82 PREPARECLOTHES DRYER...............`..................................................................................................83 PREPARE SMOKE ALARMS ............... I ..............................................................".... .84 PREPARE FIREPLACES ................................................................................................................84 .... .. ........................... PREPARE KITCHEN AND BATH APPLIANCES / FIXTURES.................................................................86 INSTALL EXTERIOR LIGHTING ............ I..................................................................................................87 INSTALL CEILING FANS AND LIGHTIN�I...............................................................................................87 TESTELECTRICAL SYSTEM..................................................................................................................88 COMPLETE EXTERIOR WORK.....1....................................................................... 89 STEP 1. REPAIR AND SEAL BOTTOM BOARD..................................................................................89 1 STEP 2. INSTALL GROUND MOISTURE RETARDER.........................................................................89 STEP 3. INSTALL SKIRTING .............. ll................................................................................................90 STEP 4. ASSEMBLE OPTIONAL WIND PROTECTION SHUTTERS...................................................91 STEP 5. COMPLETE SITE -BUILT STRUCTURES...............................................................................92 PREPARE HOME FOR OCCUPANCY................................................................... 93 STEP 1. VERIFY ALTERNATIVE CONSTRUCTION (A/C) INSPECTION............................................93 STEP 2. COMPLETE INSPECTION CHECKLIST.................................................................................93 STEP 3. COMPLETE ENERGY STAR C1IHECKLIST.............................................................................93 STEP4. CLEAN THE HOME.................................................................................................................93 COMPLETE INSTALLATION CHECKLIST............................................................ 94 Hu -I.- B-IFuur- Manufacturer's Installation Manual - June 2015 4K�PFS#02 Confor"t. HUD MSS 4IR 15 Using the Manual This manual is organized into a series of steps that will take you through the entire installation process using only those pages required for the specific home being installed. First, review the entire manual, including the Introduction chapter. As you read it, identify sections of the manual that you will need; identify other documents or information you will need; construct lists of tools and materials required for your particular installation; and make sure you have everything you need before starting work. After reviewing the entire manual, refer to the sequence of installation steps in the table below. Identify the pathway for your installation and follow the arrows downward. Select either Single Section Home or a Multi -Section Home and choose the col- umn corresponding to the home's foundation type, either Pier and Ground Anchor or Load -Bearing Perimeter Wall (see Def- initions, p. 2). Then complete the work in each of the sections starting with Getting Started. If using an alternative (proprietary) foundation system, the installation process will change from that described in this manual. Consult the system manufacturer directions for instructions. See page 5 for alternative foundation system criteria. Getting Started (p. 6) Prepare the Site (p. 10) V Install Footings (p. 15) Set the Home (p. 28) Install Stabilizing System (p. 60) Connect Utilities (p. 71) Prepare Appliances and Equipment (p. 79) Complete Under the Home and Site Built Structures (p. 89) Prepare Home for Occupancy (p. 93) Complete Installation Checklist (p. 94) Getting Started (p. 6) Prepare the Site (p. 10) Construct Foundation (p. 26) Connect Utilities (p. 71) Prepare Appliances and Equipment (p.79) Complete Under the Home and Site Built Structures (p. 89) Prepare Home for Occupancy (p. 93) Complete Installation Checklist (p. 94) Disclaimer The Manufactured Housing Research Alliance, 11 or guarantee, express or implied, as to the accw home, nor assume any liability for the use of the use. Copyright © 2008 Manufactured Housing Resea Getting Started (p. 6) Prepare the Site (p. 10) Install Footings (p. 15) Set the Home (p. 28) Complete Multi -Section Set (p.34) Complete Roof and Exterior Walls (p. 44) Connect Crossovers (p. 49) Complete Interior (p. 58) Install Stabilizing System (p. 60) Connect Utilities (p. 71) Prepare Appliances and Equipment (p.79) Complete Under the Home and Site Built Structures (p. 89) Prepare Home for Occupancy (p. 93) Complete Installation Checklist (p. 94) Getting Started (p. 6) Prepare the Site (p. 10) Construct Foundation (p. 26) Complete Roof and Exterior Walls (p. 44) Connect Crossovers (p.49) Complete Interior (p. 58) Connect Utilities (p. 71) Prepare Appliances and Equipment (p.79) ♦- Complete Under the Home and Site Built Structures (p. 89) Prepare Home for Occupancy (p. 93) Complete Installation Checklist (p. 94) members, consultants, contractors and representatives make no representations, warranty ;y or appropriateness of any materials or information in this manual for use in a specific formation, methods, or materials contained herein, or for damages arising from any such Alliance ISSN 1529-3424 • IV Manufacturer's Installation Manual - June 2015 MANVIACIU!!D 1lAUTIIVIIY' Introduction This installation manual contains instructions thl the HUD Model Manufactured Home Installation ing addendum pages and supplements) that me This installation manual covers permits and site multi -section homes installed over pier and ancl instructions, including specifications and proced family dwellings. it must be followed for the proper installation of the home. It complies with Standards. Please read all instructions and any other documents (includ- y apply to the specific home prior to commencing site work or installation. work through final inspection of the installation. It covers both single and ior, load bearing crawl space walls and basement foundations. It contains ures, for the set and hookup of manufactured homes to be used as single - The importance of correct installation cannot bel over -emphasized. Correct installation is absolutely essential to home- owner satisfaction and the structural integrity of the home. All instructions must be followed 'to provide the customer with a safe, quality home. No manual can cover all circumstances that may exist for certain home designs or building sites. For questions, further clarification, or if you encounter conditions at the site or in the design of the home or its foundation not covered by this manual, please contact the manufacturer (see Resources, p. 1), a registered engineer, or registered architect. Supplemental addendum pages may be includeld with this manual. Supplements include requirements not covered in this manual or that supersede the manual instructionIs. Once the home installation is complete, leave this manual with the home. IMPORTANT NOTICES • The home manufacturer is not responsible for installation or for the materials supplied by the set-up crew at the time of installation. The installer may be responsible for any deviations from the installation instructions of this manual. • To keep the home in compliance with its warranty, the home installation must follow the procedures described in this manual or other procedures approved by the manufacturer. Deviation from the instructions in this manual may void the home's warranty. Any alterations or changes to the home shall be approved by a registered engi- neer or registered architect and may still be subject to warranty violations. • When an installer does not provide support and anchorage in accordance with the approved manufacturer's in- stallation instructions, or encounters site conditions (such as areas that are subject to flood damage or high seismic risk) or other conditions that pre!rent the use of the instructions provided in this manual, the installer must obtain special site -specific instructions from the manufacturer or use a design approved by a registered engineer or registered architect. • The installer must possess a valid installation license as a manufactured home installer. • If the installer identifies failures of the home to comply with the Federal Manufactured Home Construction and Safety Standards (the HUD Code), the installer must notify the manufacturer and retailer. SAFETY There are potential hazards associated with the installation of a manufactured home. Home installers are licensed, and as experienced professionals, should recognize these hazards, be qualified to work with them, and be capable of providing safe work practices and equipment that minimize the risks of injury. Only qualified persons should install a manufactured home. As qualified professionals in the field of manufactured home installation, installers are the experts and must belaware of the hazards and conditions faced. Warnings are published throughout this manual as reminders. These reminders may not cover all hazards, all potential hazards, or all possible consequences of improper or unsafe installation practices. Construction crews should be trained in the skills required and be supervised by experienced personnel. Installers should regularly inspect work performed by crews and subcontractors. Obey OSHA regulations, particularly those relatedto home construction, such as Title 29 Code of Regulations Part 1926. For copies of OSHA regulations, call (202) 512-1800 or visit www.osha.gov on the web. RESOURCES Manufacturer contact information: See Back Cover • MANUFACTURID C[AUTI,ULLY• Manufacturer's Installation Manual - June 2015 Office of Regulatory Affairs and Manufactured Housing US Department of Housing and Urban Development 451 Seventh Street, SW, Room 9164 Washington, DC 20410-8000 Telephone: (202) 708-6423 or (800) 927 12891 FAX: (202) 708-4213 j State Administrative Agencies A list of SAA's may be found on the web !at www.hud.gov or by contacting the Office of Regulatory Affairs and Manu- factured Housing. FEDERAL PREEMPTION This home was engineered, constructed, and inspected in conformance with the Federal Manufactured Home Construc- tion and Safety Standards of the US Department of Housing and Urban Development (24 CFR Part 3280, commonly re- ferred to as the "HUD,Code") in effect on the;date of manufacture. These Standards set forth minimum requirements for the design and construction of manufactured homes designed to be used as dwellings. Individual states, counties and cities shall have no authority to establish standards regarding the construction or safety of a manufactured home. A metal certification -label is affixed to each section of the home to certify that it has been con- structed and inspected to comply with these ;Standards. The design plans and in -plant construction of all homes are in- spected by independent third party agencies to assure compliance with the Standards. The installation of the home and any alterations made to the home shall conform to the requirements of the Federal Manufactured Home Construction and Safety Standards and the HUD Model Manufactured Home Installation Standards. These installation instructions are minimum 'requirements. Applicable local or state laws may have more stringent installa- tion requirements than outlined in this manual and must be followed. Consult with the local authority having jurisdiction (LAHJ) for regulations that may require licenses and/or permits or which may affect procedures described in this manual. DEFINITIONS ANCHOR ASSEMBLY. Any device or other, means designed to transfer loads to the ground. ANCHORING EQUIPMENT. Ties, straps, cables, turnbuckles, chains, and other approved components, including tension- ing devices that are used to secure a manufactured home to anchor assemblies. ANCHORING SYSTEM. A combination of anchoring equipment and anchor assemblies that will, when properly designed and installed, resist the uplift, overturning, and lateral forces on the manufactured home. BASEMENT. A load -bearing perimeter walllfoundation that includes habitable space (finished or unfinished, heated or unheated) partly or completely below grade. CRAWLSPACE. The space underneath the home's floor system, enclosed with either load- or non -load bearing perimeter walls. The ground may be covered with a concrete slab or by a plastic ground cover. Crawlspace walls must be vent- ed. CROSSOVERS. Utility interconnections between sections of multi -section homes, including heating and cooling ducts, electrical circuits, and water pipes, drain plumbing, and gas lines. DATA PLATE. An information sheet located at the main electrical panel, in the utility room, in a bedroom closet, or in a cabinet in the kitchen. It contains a unique identification number and identifies the wind zone, roof load zone, and cli- matic zone for which the home was constructed. DIAGONAL TIE. A tie intended to resist horizontal or shear forces, but which may resist vertical, uplift, and overturning forces. I FOOTING. That portion of the support system that transmits loads directly to the soil. GROUND ANCHOR. A specific anchoring�assembly device designed to transfer home loads to the ground. H-BEAM. Steel H-beams are often used to support a home over a basement or crawlspace. They span across the foun- dation from sidewall to sidewall, typically with an intermediate support pier and footing (typically in the center point re- sulting in a line of piers under the centerline of a double section home). INFORMATION PACKET. A set of important documents provided with the home including warranties, information on high wind coverage, and other features of the specific home. INSTALLATION LICENSE. The proof that an installer meets the requirements for installing manufactured homes under the HUD -administered installation program. i 2 Installation Manual - June 2015 M�eueeco1.1—Y' LABELED. Equipment or materials to which has' been attached a label, symbol, or other identifying mark of a certified testing laboratory, inspection agency, or other an organization concerned with product evaluation. The label indicates compliance with nationally recognized standards or tests to determine suitable usage in a specified manner. LISTED OR CERTIFIED. Included in a list published by a nationally recognized testing laboratory, inspection agency, or other organization concerned with product evaluation that maintains periodic inspection of production of listed equip- ment or materials, and whose listing states gither that the equipment or material meets nationally recognized stand- ards or has been tested and found suitable for�use in a specified manner. LOAD -BEARING PERIMETER WALL FOUNDATION. A support system for the home whereby the home is mechanically fastened to a structural wall(s) that transfers�gravity, lateral, and uplift loads to the ground. LOCAL AUTHORITY HAVING JURISDICTION (LAHJ). The state, city, county, municipality, utility, or organization that has local responsibilities that must be complied with during the installation of a manufactured home. MUST. Indicates a mandatory requirement. N/A. Indicates not applicable. PIER. That portion of the support system between the footing and the manufactured home, exclusive of shims. Types of piers include, but are not limited to: (1) manufactured steel stands; (2) pressure -treated wood; (3) manufactured con- crete stands; (4) concrete blocks; and (5) poi ions of foundation walls. PIER AND GROUND ANCHOR FOUNDATION. A support system for the home that employs piers under the chassis and other locations to support gravity loads and employs ground anchors and tie downs (the stabilizing system) to resist lateral and uplift loads. PERIMETER BLOCKING. Regularly spaced piers supporting the sidewalls and marriage line of the home. Some homes require perimeter blocking in addition to supplorts under the home's frame. QUALIFIED. Has the necessary knowledge and s�ills gained from experience and training that will allow performance of the job safely, competently, and in accordance with all applicable codes, standards, rules, and regulations. Meets all necessary qualification tests including any license and certification requirements that may be in effect in the area where the home will be installed. RAMADA. Any freestanding roof or shade structure, installed or erected over a manufactured home or any portion there- of. SHOULD. Indicates a recommendation that is stro' gly advised but not mandatory. SHALL. Indicates a mandatory requirement. SITE FOR A MANUFACTURED HOME. A designated parcel of land designed for the accommodation of one manufac- tured home, its accessory buildings or structures, and accessory equipment, for the exclusive use of the occupants of the home. SKIRTING. A weather -resistant material used to enclose the perimeter, under the living area of the home, from the bottom of the manufactured home to grade. STABILIZING SYSTEM. All components of the anchoring and support systems, such as piers, footings, ties, anchoring equipment, anchoring assemblies, or any other- equipment, materials and methods of construction, that support and secure the manufactured home to the ground. SUPPORT SYSTEM. Pilings, columns, a combination of footings, piers, foundation walls, caps, and shims and any com- bination thereof that will, when properly installed, support and secure the manufactured home to the ground. TIE. Straps, cable, or securing devices used to connect the manufactured home to anchoring assemblies. UTILITY CONNECTION. The connection of the manufactured home to utilities that include, but are not limited to, electrici- ty, water, sewer, gas, or fuel oil. VERTICAL TIE. A tie intended to resist uplifting and overturning forces. WIND ZONE. The areas designated on the Basic Wind Zone Map, as further defined by the Manufactured Home Con- struction and Safety Standards. ENGINEER'S STAMP Certain pages- of this manual that contain tables or conditions which are not included in HUD's Model Installation stand- ards shall display the seal of a registered engineer. Federal guidelines only require the seal from one state to be dis- played, but the details herein apply to all states. See' HUD standards 3280.2 for Definition of Professional Engineer. I .EpManufacturer's Installation Manual - June 2015 3 SYMBOLS USED IN THE MANUAL This icon indicates an important warning. It is critical to heed these warnings. This icon indicates a recommended best practice. While not required, following these practices will result in a superior installation, reducing the chance that cosmetic or dura- bility related complaints might arise. ABBREVIATIONS ABS............ Acrylonitrile Butadiene Styrene max............ Maximum MHCSS ....... Manufactured Home Construction and ANSI........... American National Standards Institute Safety Standards APA............ American Plywood Association min ............. Minimum Mph ............. Mile(s) per hour ASTM ......... American Society for Testing and Materials NEC National Electric Code AWPA ........ American Wood Preservers Association ............. NFIP ............ National Flood Insurance Program CFM............ Cubic feet per minute NFPA .......... National Fire Protection Association CFR............ Code of Federal Regulations DWV........... Drain, Waste, Vent o.c.............. On center OSHA.......... Occupational Safety and Health Administration EMT............ Electrical metallic tubing FEMA ......... Federal Emergency Management Agency Oz................ Ounce(s) p................. Page Ft ................ Foot/feet Psf............... Pounds per square foot Ga............... Gauge i HUD............. US Department of Housing and Urban Development i In ................ Inch(es) I LAHJ .......... Local Authority Having J y� risdiction lb(s) ........... Pound(s) Psi ............... Pounds per square inch SAA............. State Administrative Agency sq ft............. Square foot/feet 4 Manufacturer's Installation Manual - June 2015 MANUlACTU!!D !lAUIIIUIIY• ALTERNATIVE TIE -DOWN AND/O Champion approves the use of an alternative fo ing Jurisdiction (LAHJ) and a recognized HUD 1 • Systems or designs are manufactured testing agency based on a nationally n • System designs are prepared by a reg tered engineer or registered architect i and installed so as not to take the hon Standards. FOUNDATION SYSTEMS idation system if first reviewed and accepted by the Local Authority Hav- ird Parry Agency. All systems must also meet one of the following: nd installed in accordance with their listings by a nationally recognized :ognized testing protocol; or tered engineer or a registered architect or tested and certified by a regis- accordance with acceptable engineering practice and are manufactured out of compliance with the Manufactured Home Construction and Safety DISPLAY AND STORAGE OF THE HOME WEATHER PROTECTION If the installation is not started immediately upon delivery of the home, the retailer and/or installer has the responsibility to ensure the exterior weather protection covering oII marriage walls and the roof of homes with hinged roofs has not been damaged during shipment. Inspect the home immediately upon the delivery and frequently during storage. Promptly repair tears in the home closure materials to prevent damage from the elements. Inspect and repair roof shingles and siding as needed. SUPPORTING A HOME FOR DISPLAY When a new or used manufactured home is to be, displayed at a retail location, temporarily block and support the home. Set up single -section homes with single block piers spaced no further apart than 12 feet o.c. beneath each I-beam. The tire and axle system may be used as one of these required supports, and the hitch jack may be used as another. Locate the first pier no further than two feet from the rearlend of the home (Figure 1). Place additional piers along the perimeter on either side of openings greater than four feet Q e. sliding glass doors, bay windows, etc.). For multi -section homes, locate additional piers allong the marriage line under support columns. These locations will be marked by the manufacturer. Figure 1. Supporting a home for display 1 z,-0. z,-0„ I 1 z,A„ For all homes, place footings below each pier. Footings may be placed directly on the surface grade without excavation and may be ABS pads, 2 x 10 by 16 inch long pressure treated lumber or 16" x 16" by 4 inch thick concrete pads. SUPPORTING A HOME FOR STORAGE To prevent damage to homes being stored but note on display (i.e. people shall not be permitted inside the home) for a pe- riod exceeding 30 days, locate piers below each I-beam no further than two feet from each end of the home and at the approximate center between the tire and axle system and pier at hitch end of home. Whether the home is being supported for display or storage the height of the home should be no higher than 36" as measured from the top of the ground to the bottom of the I-beam. In addition, it is extremely important that the roof/ridge vents are installed while the home is on display. Failure to install the roof/ridge vents may lead to significant damage to the roof and home. • — U, �TU1eo Manufacturer's Installation Manual - June 2015 5 Getting Started! This chapter covers a few steps that, taken �i will avoid problems later in the installation process. STEP 1. LOCATE THE DATA PLATE Locate the data plate inside the home (Figure 2), typically inside a kitchen cabinet door or on a wall panel or door face near the electrical panel, utility room, or bedroom closet. The information on the data plate will be used to verify that the home was designed for the proper location. STEP 2. CONFIRM WIND ZONE From Table 1, identify the wind zone for the home. Verify that the home conforms to the following rules and any special requirements determined by the LAHJ. • No home may be located in a higher wind zone than that indicated on the da- ta plate. (Example: a home designed for Wind Zone II cannot be placed in Wind Zone III.) • A home may be located in a lower wind zone than that indicated on the data plate. (Example: a home designed for Wind Zone II can be placed in either Wind Zone II or l.) I • Homes located within 1,500 feet of the coastline in Wind Zones II and III must be designed to withstand expos ire 'D' conditions. This will be indicated on the data plate. If the home does not conform to these rules, contact the manufacturer immediately. Figure 2. Sample data plate - Shown as reference only. Actual data plate may vary. ; ' // Site appropriateness. If the site is not accessible, not appropriate for the planned support system or cannot be properly graded, notify the purchaser, the retailer and HUD, with the reasons why the site is unsuitable. Do not install the home until all issues are remedied. • 6 Manufacturer's Installation Manual - June 2015 NUFACTU¢ED ¢EAUTIFUIIY` TABLE 1. WIND ZONE BY LOCALITY Wind Zone I All areas except those areas listed below as being within Wind Zone II or III Wind Zone 11 ... Counties of Baldwin and Mobile Florida All counties except those listed below as within Wind Zone III Georgia Counties of Bryan, Camden, Chat iam, Glynn,Liberty, McIntosh Louisiana Parishes of Acadia, Allen, Ascens'on, Assumption, Calcasieu, Cameron, East Baton Rouge, East Feliciana, Evangeline, Iberia, Iberville, Jefferson Davis, Lafayette, Livingston, Pointe Coupee, St. Helena, St. James, St. John the Baptist, St. Landry, St. Martin, St. Tammany, Tangipahoa, Vermillion, Washington, West Baton Rouge, and West Feliciana Maine Counties of Hancock and Washington Massachusetts Counties of Barnstable, Bristol, Dukes, Nantucket, and Plymouth Mississippi Counties of George, Hancock, Harrison, Jackson, Pearl River, and Stone North Carolina Counties of Beaufort, Brunswick, Camden, Chowan, Columbus, Craven, Currituck, Jones, New Hanover, Onslow, Pamlico, Pasquotank, Pender, Perquimans, Tyrrell, and Washington South Carolina 1 Counties of Beaufort, Berkeley, Charleston, Colleton, Dorchester, Georgetown, Ho&y, Jasper, and Williamsburg :1 Texas Counties of Aransas, Brazoria, Calhoun, Cameron, Chambers, Galveston, Jefferson, Kennedy, Kleberg, Matagor- da, Nueces, Orange, Refugio, San Patricio, and Willacy Virginia Cities of Chesapeake, Norfolk, Portsmouth, Princess Anne, and Virginia Beach • Entire state Coastal regions (as determined by the 90 mph isotach on the ANSI ASCE 7-88 map) • .. Counties of Broward, Charlotte, Collier, Dade, Franklin, Gulf, Hendry, Lee, Martin, Manatee, Monroe, Palm Beach, Pinellas, and Sarasota Parishes of Jefferson, La Fourche Orleans, Plaquemines, St. Bernard, St. Charles, St_. Mary, and Terrebonne w Counties of Carteret, Dare, and H de- • -All regions of the U.S. Territories of American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Trust Territo- ry of the Pacific Islands, and the United States Virgin Islands STEP 3. CONFIRM THERMAL ZONE From Figure 3, identify the thermal (UO) zone for�the home. Verify that the home con- forms to the following rules. • No home may be located in an area with a Ihigher thermal zone number than that indicated on the data -plate. (Example: la home designed for Thermal Zone 2 cannot be placed in Thermal Zone 3.) • A home may be located in a lower thermal zone than that indicated on the data plate. (Example: a home designed for Thermal Zone 2 may be placed in either Thermal Zone 2 or 1.) • In no case may a home designated for installation in the "Humid & Fringe Cli- mate," as identified on the data plate, be located outside of this region (Table 2). If the home does not conform to these rules, contact the manufacturer immediately. a Zo i Figure 3. Thermal (UO) zone map ' � I MA„�..�r�.Eo OeAUT1U1�Y. Manufacturer's Installation Manual - June 2015 7 TABLE 2. HUMID AND FRINGE CLIMATE ZONES •. Counties of. Baldwin, Barbour, Bullock, Butler, Choctaw, Clarke, Coffee, Conecuh, Covington, Crenshaw, Dale, Escambia, Geneva, Henry, Houston, Lowndes, Marengo, Mobile,, Monroe, Montgomery, Pike, Washington, and Wilcox • • - All counties and locations • • . Counties of Appling, Atkinson, Bacon, Baker,, ben Hill, Berrien, Brantley, Brooks, Bryan, Calhoun, Camden, Char- leton, Chatham, Clay, Clinch, Coffee, Colquitt, Cook, Crisp, Decatur, Dougherty,, Early, Echols, Effingham, Evans, Glynn, Grady, Irwin, Jeff Davis, Lanier, Lee, Liberty, Long, Lowndes, McIntosh, Miller, Mitchell, Pierce, Quitman, Randolph, Seminole, Tattli all, Terrell, Thomas, Tift, Turner, Ware, Wayne, and Worth All counties and locations • All'count]es and locations • • Counties of Adams, Amite, Claiborne, Clarke, Copiah, Covington, Forrest, Franklin, George, Greene, Hancock, Harrison, Hinds, Issaquena, Jackson, Jasper, Jefferson, Jefferson Davis, Jones, Lamar, Lawrence, Lincoln, Mari- on, Pearl River, Perry, Pike, Rankin, Simpson, Smith, Stone, Walthall, Warren, Wayne, and Wilkinson - . - Counties of Brunswick, Carteret,, Columbus, New Hanover, Onslow,.and Pender • • Counties of Beaufort, Berkeley, Charleston, Colleton, Dorchester, Georgetown, Horry, and Jasper Counties of Anderson Angelina, Aransas, Atascosa, Austin, Bastrop, Bee, Bexar, Brazoria, Brazos, Brooks, Bur- leson, Caldwell, Calhoun, ;Cameron, Camp, Cass, Chambers, Cherokee, Colorado, Coma], De Witt, Dimmit, Duval, Falls, Fayette, Fort�Bend, Franklin, Freestone, Frio, Galveston, Goliad, Gonzales, Gregg, Grimes, Guadalupe, Hardin, Harris, Harrison, Hays, Henderson, Hidalgo,. Hopkins, Houston, Jackson, Jasper, Jefferson, Jim Hogg, Jim Wells, Karnes, Kaufman, Kennedy, Kinney, Kleberg,.La Salle, Lavaca, Lee, Leon, Liberty,' Limestone, Live Oak, Madison, Marion; Matagor';da, Maverick, McMullen„ Medina, Milam, Montgomery, Morris, Nacogdoches, Navarro, Newton, Nueces, Orange,, Panola, Polk, Rains, Refug'io, Robertson, Rusk, Sabine,' Sari Augustine, San Jacinto, San Patricio Shelby, Smith, Starr, Titus, Travis, Trinity, Tyler, Upshur, Uvalde, Val Verde, Van Zandt, Victoria, Walker, Waller, Washington, Webb, Wharton, Willacy, Williamson, Wilson, Wood, Zapata, and Zavala . ' All Locations STEP 4. CONFIRM ROOF LOAD ZONE From Table 3, identify the Roof Load Zone for the home. Verify that the home con- forms to the following rules. • No home may be placed in an area with a higher roof load than that indicated on the data plate. (Example: a home designed for the South (20 psf) Roof Load Zone cannot be placed in the Middle (30 psf) Roof Load Zone). • A home may be located in an area with a lower roof load than that indicated on the data plate. (Example: a home designed for the Middle (30 psf) Roof Load Zone may be placed in the South (20 psf) Roof Load Zone). • There are special high roof load areas (primarily in mountains) not shown on the map. Contact the LAHJ or SAA for information about these areas. The home's data plate will indicate if the home has been designed for one of these high roof load areas. • Ramadas may be used in areas with roof live loads greater than 40 psf. Ramadas are to be self-supporting, except that any connection to the home must be for weatherproofing only. TABLE 3. ROOF LOADS BY LOCALITY North r psf roof All counties Counties of. Aroostook, Piscataquis, Somerset Penobscot, Waldo, Knox, Hancock; Washington �— • .. •. All counties • All counties • Counties of: Buena Vista, Butler, Calhoun, Cerro Gordo; Cherokee, Chickasaw, Clay, Dickinson, Emmet, Floyd, ,Franklin, Hamilton, Hancock,-'Hardin,'Howard, ; Humboldt,'Ida,,Kossuth,'Lyon, Mitchell; O'Brien, Osceola, Palo Alto, � Plymouth, Pocahontas, Sac, Sioux, Webster, Winnebago, Worth, Wright Counties of Androscoggin, Cumberland, Franklin, Kanabec, Lincoln, Oxford, Sagadahoc, York County of,Essex j • ufacturer's Installation Manual - June 2015 MANUTACTU.6• .lAUTIIUItt` Counties of Alger, Alcona, Alpena, Antrim, Baraga, Benzie, Charlevoix, Cheboygan, Chippewa, Crawford, Delta, Dickson, Emmet, Gogebic, Grand Traverse, Houghton, Iron, Kalkaska, Keweenaw, Leelanau, Luce, Mackinac, Marquette, Menominee, Missaukeel, Montmorency, Ogemaw, Ontonagon, Oscoda, Otsego, Presque Isle, Ros- common, Schoolcraft, Wexford .. Counties ofAitkin, Anoka, Benton Slue;Earth, Brown, Cass, Carlton, Carver, Chippewa, Chisago, Cook, Cotton- wood; Crow Wing, Dakota, Dodge,IliDouglas, Faribault, Fillmore, Freeborn, Goodhue, Grant, Hennepin, Hubbard, Itasca, Isanti, Jackson, Kandiyohi, anabec, Koochiching, Lae,qui Parle, Lake, Le Sueur, Lincoln,'Lyon, McLeod, Meeker, Morrison, Millie Lacs, Mower, Martin, Murray, Nlcollet, Nobles, Olmsted, Pipestone,.Pine, Pope, Ramsey, Redwood, Renville, Rice, Rock, StJ Louis, Sibley, Scott, Steele, Sherburne, Swift, Stearns, Stevens, Todd, Wade- na, Wright, Washington, Wabasha, Winona, Waseca, Watonwan, Yellow Medicine All Counties • All Counties ; Counties of Cayuga, Clinton, Essez, Erie, Franklin, Fulton, Genesee, Hamilton, Herkimer, Jefferson, Lewis, Living- ston, Madison, Monroe, Montgomery, Niagara, Oneida, Onondaga, Ontario, Orleans, Oswego, St. Lawrence, Sara- toga, Schenectady, Seneca, Warren, Washington, Wayne, Wyoming, Yates 9. .. Counties of Brookings, Clay, Codington, Deuel,'Grant, Hamlin, Hanson, Hutchinson, Kingsbury, Lake, Lincoln, McCook, Miner, Minnehaha, Mood, Turner, Union, Yankee All Counties • Counties of Addison, Caledonia, Chittennden, Essex, Franklin, Grand Isle„ Lamoille, Orange, Orleans, Rutland, Washington, Windsor j Counties of Ashland, Bayfield, Barron, Buffalo, Burnett, Clark, Chippewa, Door, Douglas, Dunn, Eau Claire, Flor- ence, Forest, Iron, Jackson, Langlade, Lincoln, Marathon, Marinette, Menominee, Oconto, Oneida, Pepin, Pierce, Polk, Price, Rusk, St. Croix, Sawyer, Taylor, Trempealeau, Vilas, Washburn • All Counties • - The states and counties not listed for the Middle or North roof load zone above are deemed to be within the South roof load zone. { STEP 5. CHECK LOCAL CODES AND SECURE PERMITS Local regulations may set conditions for the siting and installation of a manufactured home. Consult the LAHJ, state manufactured housing association, and the state SAA (See Resources, p. 1) for the specific local requirements, including: • Building codes that may affect the construction of site built structures and infrastructure. I • Local requirements regulating the install • Setback requirements for property lines, • Fire separation distances. • Development covenants for the specific • The locations of flood hazard areas and for homes installed in those areas. • In some areas, building permits are reqL Prior to making any alteration to the site determine if plan approval and permits a of manufactured homes. its, yards, and courts. special foundation requirements - d to install manufactured homes. d the home, contact the LAHJ to required. �A Areas subject to flooding. The foundation specifica- tions contained in this manual are NOT intended to address flood loads. If the home is in the flood plain, consult a registered engineer. M.N�P...,.... HAU111.„Y- Manufacturer's Installation Manual - June 2015 9 Prepare the Si A properly prepared site is critical to a This chapter explains the process of p home's support system. STEP 1. _ PLAN SITE ACCE Planning the route to the site is typically t company. Whoever is responsible must s which the home will pass. In planning the route, avoid obstructions 1 home, such as low hanging wires and tre for the load. Contact the utility company ii branches, bushes, or other foliage to scrE to the site. Avoid ditches, berms, steep sl holes and soft spots into which the transp steep changes in grade (20 degrees or m If required, provide for home storage and and staging of home sections and materii home sections and materials can be acce sequence. Orient home sections so they maneuvered during the installation proce; dumpsters, portable toilets, crew parking, mixer deliveries. J quality installation and the long term structural stability of the home. ing the site, evaluating the soil, and preparing the site for construction of the S responsibility of the retailer or transportation ;ure state permits from the states through iat might interfere with the passage of the s, low overpasses, and bridges not suitable wires need to. be moved. Do not•allow )e against the home as the home is. moved apes, and soft ground. Identify and fill any )rter's wheels may sink. Avoid moving over aging areas on the site. Plan the delivery so that after all deliveries are complete, ed for use and installed in the appropriate not have to be rotated or excessively Plan for temporary needs, such as :livery vehicle drop-offs and concrete Before moving the manufactured home tol the site, inform the LAHJ and make sure the site is prepared and utilities are available. STEP 2. DETERMINE HOP The home location may have already be location and layout in compliance with tl STEP 5. CHECK LOCAL CODES AND locations of existing infrastructure, such lines. When planning the site improvements, c • The home location should be I • Avoid contact with large trees, tial flood zones. • Preserve trees and shrubs for LOCATION AND LAYOUT i determined by others. If not, plan the home regulations researched in Getting Started, ECURE PERMITS (p. 9). Contact utilities for ; underground cables, pipes, and electrical the following: slopes, poorly drained areas, and poten- visual screens, and windbreaks. • Plan the driveway, parking areas, septic, well, other structures, and utility lines. • Consider future additions, such as screen rooms, porches, and awnings. • Site the home away from natural water paths. i ' // Site Preparation. The home manufacturer has no con- trol over the site planning and installation of the home unless the manufacturer is responsible for the home's installation. Final responsi- bility for site preparation, including soil stability and frost heave control, lies with the installer. An improperly prepared site may result in the denial of a foundation - related warranty claim. Fire separation. Comply with any LAHJ fire separa- tion requirements or the re- quirements NFPA 501A, 2003 edition (Chapter 6). 10 s Installation Manual - June 2015 ueaau.eo eewumuuv- STEP 3. CLEAR AND GRADE TH Trim overhanging foliage considering future growtl and snow/ice-weighted branches. Remove organic roots, twigs, dead branches, grass, and brush fror any debris that could become termite infested fron move all other debris from the home location, inch tions. Properly dispose of all items. Crown the site (Figure 4) so that water will not acl home. Also, slope away from the foundation for tt of 1/2 inch per foot. Where property lines, walls, sl prohibit this slope, provide the site with drains, sw from the structure. Any fill required to grade the sit applied in a maximum of four inch layers, compac 90% of its maximum relative density. Direct runoff berms (Figure 5). If the home will have skirting, st edge of the home. Grade the ground so that water under porches, away from the home. If proper grading is not pc drain tile and automatic sump pump system to der the home. The home is suitable for the installation of gutters downspouts are installed, direct runoff away from E. SITE potential storms, swaying in wind material such as vegetation, wood, directly under the home. Remove the site and surrounding area.. Re - ling roots from beneath footing loca- mulate or stand underneath the first ten feet with a minimum slope )es,, or other physical conditions )s, or grading to drain water away should be inorganic "controlled fill" J between each layer to at least Wray from the site using ditches and t grading from two feet in from the y y )ws Indicate ction of water and recessed entries flows use other methods such as a any water that may collect un- downspouts. When gutters and home. STEP 4. DETERMINE SOIL CONDITIONS Examine the soil type under the proposed home location to make sure it is suitable for placement of a home. The design of the home's support system, including footing/pier spacing and size, will in part be determined by the bearing capacity of the soil, and ground anchors by the soil's withdrawal strength. The soil under every portion of the support system: must meet the following criteria: • The soil must be firm and undisturbed (not previously excavated) or fill com- pacted to at least 90% of its maximum relative density. Uncompacted fill will set- tle over time, causing the home to shift and become unleveled. • Fill must not contain large debris. This too will settle over time. • The soil must not be comprised of organic clays or peat. Organic material can decay, causing settlement, and also may, harbor pests that can infest the home. The water table must be below the lowest level of the planned support system/ foundation. A soil's bearing capacity can )be greatly reduced when it is saturated with water. Note that water tables may vary with seasonal or climactic condi- tions. Consult a geologist or the LAHJ if you are unsure of the water table level. Z ZZ Site drainage. Moisture un- der the home can result in structural damage to the floor system and other parts of the home. Failure to provide adequate slope/drainage can result in moisture -related problems such as mold, mildew, and erosion. Figure 4. (Left) Crown or keep soil flat under the home be- tween the outer beams to pre- vent water ponding Figure 5. (Right) Direct runoff away from the home Soil. Inadequate soil bearing capacity or a support system mismatched to the soil char- acteristics can result in ex- cessive or differential set- tlement of the home, which can cause the home to go out of level, resulting in jammed doors and windows, cracks in finishes and rup- tured plumbing connections. MA—FACTURED oEAUTIFULLY• Manufacturer's Installation Manual - June 2015 11 • The soil must not be a highly expansive type. Expansive soils can expand when they become saturated with water, causing the home to. shift and become un- leveled. If soils are expansive, contact a registered engineer, or registered ar- chitect to assist with the design ;of the foundation system. STEP 5. DETERMINE SOI AND FROST LINI The soil under a home must be capable weight of the home, its support system by wind, snow, or other climactic conditi EARING CAPACITY withstanding the loads imposed by the furnishings, as well as any loads imposed SOIL -BEARING CAPACITY Determine the soil -bearing capacity in pounds per square foot (psf) before designing a support system. The, higher the capacity (psf), the more weight the soil can hold without unduly compressing. As the soil -bearing capacity increases, footings can be reduced in size or spaced farther apart. Use one or more of the following methods to determine the site's soil bearing capacity: • Test the soil. Hire a registered geologist, registered engineer, or registered architect to determine the soil classification and maximum allowable soil bear- ing capacity by testing the soil in accordance with generally accepted engi- neering practice. • Obtain soil records. The local 'office of the U.S: Department of Agriculture's Natural Resources Conservatiop Service (www.soils.usda.gov) and/or the LAHJ may have test results and/or soil analyses on file for the area. • Conduct a pocket penetrometer test. Use a pocket penetrometer to esti- mate allowable soil -bearing capacity as follows: 1. Select a location that will be under a footing. 2. Clear an area of a minimum of one square foot at least four inches deep or to the depth of the bottom of the planned footing. 3. Using the instructions provided with the pocket penetrometer, take at least five readings. 4. Discard the high and low readings and average the remaining readings. Round this result down to the nearest soil -bearing value shown in the right column of Table 4. 5. Confrim that the rounded result matches the soil description on Table 4. • Determine soil -bearing value above is not available, the value bearing capacity by visual exarr values than the options above., special training or expertise. An to assist in classifying the soil fc by visual examination. If one of the options :s on Table 4 can be used to establish soil- iination. This method provides lower capacity 4ccurate soil identification typically requires engineer or building code official may be able fund on the site. V&r*#ZZA Soil bearing capacity. Sup- port systems on soils with bearing capacities less than 1,000 psf must be designed by a registered engineer or registered architect and approved by the LAHJ. Limitations of pocket pen- etrometers. Pocket pene- trometers do not work on sand or gravel. Use to de- termine allowable pressure for these types of soils. If you encounter a layer of gravel, test the soil under the gravel. Do not put the penetrometer on stones larger than its tip as this will provide an inaccurate reading. 2 Manufacturer's Installation Manual - June 2015 MANYIACTUIID IIAVTIIYl1Y• Rock or hard pan (class 1) 4,000 Sandy gravel and gravel; very dense and/or cemented sands; course gravel/cobbles; preloaded silts, clays and coral ;class 2) 2,000 Sand; silty sand; clayey sand; silty gravel; medium densecourse T,500 sands; sandy gravel; very stiff silt, sand clays (class 3) Clay, sandy clay, silty clay, clayey silt (classes 4A and B) 1,000 Uncompacted fill, peat, organic clays (class 5) I Professional testing required Note to table: No allowances made for overburden pressure, embedment depth, water table height, or settlement problems. • Use default capacity. Use an allowable' pressure of 1,500 psf, unless site - specific information requires the use of lower values based on soil classifica- tion and type according to Table 4. , Note that soil types may vary across a home site.) In this case, the soil with the lowest bearing capacity should be assumed when design, mg the support system. Keep a rec- ord of the soil -bearing capacity value; it will be used later to design the home's support system. FROST LINE In climates subject to ground freezing, consult the LAHJ, a registered engineer, or reg- istered architect to determine the depth of the frost line. Figure 6 may be used as a guideline when there is no specific local determination. Keep a record of the frost depth; it will be used later to design the home's s l pport system. Figure 6. Average frost pene- tration depth (in feet) ... U-.IU... 9¢AU • U IIY- Manufacturer's Installation Manual - June 2015 I 13 STEP 6. DETERMINE GROUND ANCHOR HOLDING CAPACITY Torque Probe. Before using the torque probe, check When using auger -type ground anchors to tie down the home, first, use a torque probe with the utility companies to determine the anchor -holding strengt i of the soil on the site. for the location of under - Use -a torque probe with a shaft of sufficient length to test the soil at the depth of the anchor helical plate. Augur the probe into the ground, and following the probe manufac- ground cables or pipes to avoid contact with the turer's instructions, take the torque wrench reading in the area where the anchors will probe shaft. be installed and at the depth of the anchor helix. If the soil varies in consistency across the site, then use the lowest reading. Based on this reading, consult the anchor manu- facturer's charts to select the anchor tvpe(s). 14 Installation Manual - June 2015 MANUlACTURED EEAUIIEUILY' Install Footings This chapter provides instructions for the design and construction of individual footings that transfer the load from a single pier to the ground. A footing and pier together (discussed in Set the Home) is referred to as a "support." A footing may also be designed to carry the load of multiple piers (often called "strip" footings). The design of strip footings is'not covered in this, manual. STEP 1. DESIGN POINT LOAD SUPPORTS (p. 15) STEP 2. DESIGN FRAME SUPPORTS (Homes Without Perimeter Blocking) (p. 19) STEP 3. DESIGN FRAME AND PERIMETER SUPPORTS (Homes With Perimeter Blocking) (p.20) STEP 4. SELECT FOOTING MATERIALS (p. 22) STEP 5. SIZEFOOTINGS (p. 22) STEP 6. INSTALL FOOTINGS (p. 24) STEP 1. DESIGN POINT LOAD All homes will need supports, and therefore footii multi -section homes), exterior wall openings and The home manufacturer may have provided a bli other markings under the home) indicating the re ter, marriage line and/or frame supports specificE tags take precedence over the directions provide Create a sketch of the home that includes the ex marriage line(s), if a multi -section home. The ske each support, and note the size of the correspon such a support plan. Perimeter Blocking Piers I -Beam Post Piers Perimeter Blocking Piers Door Piers JPPORTS s, under the frame, marriage line (for :her heavy point loads. king diagram (or tags, labels, paint or sired locations and/or loads for perime- t for this home. If so, the diagram or in this manual. :)r walls, the frame I -beams and the will be used in this chapter to locate 3 footing. Figure 7 is an example of Piers I -Beam Frame Marriage Wall Piers Frame Piers As the location and load for each support is determined, note it on the sketch. When se- lecting locations for supports, keep in mind that increasing the spacing between supports will increase the load on that support and the size of the required footing. Figure 7. Example of support plan Manufacturer's Installation Manual - June 2015 15 DETERMINE LOCATIONS Point loads exist where a bearing/structural weight is concentrated and transferred to the foundation at a specific point. Locate a support under each point load, including the fol- lowing examples: (1) Exterior doors on side walls at both sides of each door (blocking is not required at exterior doors on non -bearing erid walls). Note: Listed adjustable outriggers may be used to replace piers below sidewall exterior door openings less than 48". Adjustable outriggers may only be substi- tuted if local codes permit the use of these devices and they are installed ac- cording to the manufacturer's installation instructions. Adjustable outriggers shall not be substitutes for other pier applications and must be removed prior to any home relocation. (2) Other exterior wall openings four feetand greater at both sides of each opening (including multiple windows that total four feet wide or more without intermediate supports, even if individual windows are less than four feet). (3) Marriage line openings four feet or greater at both sides of each opening (when home has perimeter blocking and marriage line openings are greater than 10 feet, intermediate supports must be placed at maximum 10 feet on center). (4) Marriage line pier at corner of offset. (5) Load -bearing porch posts. (6) Under heavy (400 Ibs or greater) items, such as heavy furniture, waterbeds, fireplaces and large fish tanks. (7) Tags require 3 perimeter piers under each end as shown. (8) Perimeter piers required under front and rear of homes with front cross member and rear frame recessed over 9 inches. (9) Pier each end of walk -a -bay over 16 inches out from home. Off Set Notes • Roof of offset section must have ■ Maximum offset without center pi • All other offsets need installation ■ Offset shall be tied down and pie home. Also, pier shall be placed Mark the required point load support locations ( the manufacturer has reinforced the floor (such and so noted in the documentation provided wii typical point load support locations. Wall Openings 4' or greater (2) ter peak is 4 feet in Wind Zone I. I as a single section for that portion of the the inside corner where floors join (4). the sketch. Supports are not required where s with additional outriggers or floor joists) the home. Figure 8 and Figure 9 identify Door Piers (1) I•Boom Frame r� Heavy Load Pier (6) Marrlage Well Piers (3) i or Porch Post Piers (5 Door Pier7(1) I TAG Walk-A•Boy Piers (9) Comer Ot(satt Pier (4) Frame recess Piers (6) OH Bet Tag Perimeter Piers (7) Figure 8. Typical point -load support locations • 16 Manufacturer's Installation, Manual - June 2015 MANU[ACTUA[•[[AUTI[ULL" Door or Opening Le: Than Q in. in width Wall more than 16 in. in width I -Beam for SpansC and D respectively. [Note: If MU is Less Than 18 in, In width, Use Combined Span C * D with a Single Pier] Span(A+B) continuous Rdge Beam column Pastor wail, Less Than 18 in _dth Span A or Span A+B A CALCULATE LOADS Use Table 5 and 5A to determine the loads on point -load supports. For each support, find the columns with the appropriate roof load and section width. Find the row(s) correspond- ing to the span (see Figure 9 for guidance on determining spans — if a support is shared by spans on both sides, add the respective loads) together to arrive at the total load under that point). When ridge beam is continuous over support, multiply load by 1.25. The number in the columns under the "M" and "P" headings are the loads for supports along the marriage line and perimeter respectively (point loads in the center of a section, i.e. not along a marriage line or perimeter wall, require the load in the "P" column). Inter- polation for openings between those shown in the table is permitted. Note the required loads next to each point load support on the sketch. TART F 5_ LOAD ON POINT -LOAD FOOTINGS — Ibs- (FRAME ONLY SUPPORTS) Figure 9. Typical support lo- cations along the marriage line for home not requiring regularly spaced perimeter supports (see figure 12 for homes with regularly spaced perimeter supports) i /, Maximum home eaves. are 16 inches for 14 wide or less, and 12 inches for wid- er sections. 12 Wide 20 I PSF Live Load Roof ide load.width 18 Wide 12 Wide 30 PSF Live Load 14 Wide 16 Wide.- 700 430 800 480 910 520 F050 590 940 580 1070 640 1220 690 14b0 780 1400 h 860 {� 1600 960 tl 1820 1030 2100 1 1170 {� 1870 1150�i�140 1280 i 2430 a� 1380 (, 2800 ' 1560 2100 1290 2400 1440 2730 1550 3150 1760 2800 1720 3200 1920 3640 2060 4200 2340 2800 L° 1720 1 3200 , II 1920 ° {, 3640 4 2060 t 4200 1y' 2340 ' 2300 t� 4270 ;i 25601 4860 ti 2750 5 0 i 3120 3500 2150 4000 2400 4550 2580 5250 2930 4670 2870 5340 3200 6070 3440 7000 3900 4200 R 4806 I f 5460 t, „ 8400 4900 5600 6370 7350 6540 7470 8500 9800 5600 1 40 60 ;, 0 7280 'ri 8400 u r 774770 IT 9710 8540 y „ - 1120r 011 *M = Marriage Line, P = Perimeter (For piers supporting one floor at marriage line; use % the above loads) PHILLIP J. ' _CO Na f I Apt �z N NEER �} 32035 A pfssslonal En9w�ee June 1, 2015 M�Hp.�aTu.ea.e�uTt�pur• Manufacturer's Installation Manual - June 2015 17 TABLE 5A. LOAD ON POINT -LOAD FOOTINGS — Ibs. (FRAME AND PERIMETER WITH MARRIAGE LINE SUPPORTS) 16 18 .- 2340 1410 2670 1580 3040 1700 3500 1930 3040 1840 3470 2060 3950 2220 4550 2520 ® 3740 �P270 4270 � 20 0 4860� ' 2730 5600 � 3900 4900 299� 0 600 �+ 3340 63 0 + 2900 3040 ,220 70 3590 7351 4080 5140 31300 5870 3500 66801' 3760 7700 4270 6770 4130 7740 4620 8800 4960 10150 5640 . 840 ,, _R -7 1L s_ 8 00 0040 11550I 5840 6670 7590 S 0 7700 I 6540 7470 85001 9800 8640 9870 11230 12950 s, 124401 7240-�-yl, I, ,8270O 9410TI .*-�j'108501 ii 9570 1 409 0 ^`[ ; 4350II 3740 2270 4270 2540 4860 2730 4640 3100 4260 3130 4870 3500 5540 3760 4 0 T 299051 600_� 334 6370 1 3590'6390 � 080 f• 5900 ,{ 4130 , 6740 jl 462060 9 6070 3700 6940 4140 7890 1 4450 8140 5050 7530 5140 8600 5740 9790 6160 7240 1 4� 420 rl 8270 4940 9410 = ° 5310��-9890 m '6030 +1 9 0 ? 6140' 10470 6660 111910 f � 7370 8400 5140 9600 5740 10920 6160 11640 7000 10800 7140 12340 7980 14030 - 9570 r—^�jj;10940 it 1112440 - — n13390 n - 12430 -i 4 02 0 - ' � -- J s Jt — v_ c v 10740 12270 13960 - 15140 14060 11900:a 13R00 SP „15470 77 Il77— 116�0 5430 3990 4940 4460 5620 3980 5250 4030 6000 4500 6190 4750 7070 4230 7530 6 52801 7340 l 5900� 8350 S 5530 7820 fi 5610 t 8940 6_ " "`� 9220 6610 10540`a 0 9630 6570 9740 7340 11080 7070 10390 7190 11870 8020 12250 - 14000 11 30 i 7860 I'12140 J 13810 ' n 12950 14800 ITi 15 0° 13830 - 14540 15520 - _.— 15930',_ I�, i 1 1 � it t I 32` *M = Marriage Line, P = Perimeter/Side Wall (For piers supporting one floor at marriage line, use the above loads r PHILLIP J.'� _COP ND ���10tJ�Pk N8'fNEER N0. A 32035 D �fasslDnal En9ti�D June 1, 2015 18 F Manufacturer's Installation Manual -June 2015 MANUFACTURED 4lAVTIFUIIY- STEP 2. DESIGN FRAME SUPPORTS (Homes Without Perimeter Blocking) DETERMINE LOCATIONS All homes require regularly spaced supports along all main frame I -beams. Select spac- ing between supports and sketch them on the support plan. Keep in mind that frame sup- ports under homes with 8" deep I -beams may be I' o more than eight feet apart. Those under homes with 10" or 12" deep I -beams may be no more than 10 feet apart. Generally, greater distances between supports will require latger footings. Figure 10 shows typical frame support locations. Side Wall (Perimeter Point -Load) Piers Required at Openings 4 It or Greater Door Piers I -Beam Post Piers \ Door Piers I -Beam Frame e Wall (Polnt-Load) Piers ad at Openings 4 It or Greater Piers CALCULATE LOADS Use Table 6 to determine the loads on frame supports. Find the column with the appro- priate roof load and section width. Find the row corresponding to the selected support spacing. The number in the intersecting cell is the' load. load. Loads on all frame supports can be assumed to be equal if support spacing is equal. However, if different support spacings are used then each support with a different spac- ing should be calculated separately. Note the location and load required of each supplort on the sketch. TABLE 6. LOAD ON FRAME SUPPORTS FOR HOMES NOT REQUIRING PERIMETI V I � A Spacing frame supports. There must be a support lo- cated near the end of each I-beam such that there is nc more than 24 inches of beam past the edge of the support. Figure 10. Typical support locations for homes not requiring regularly spaced perimeter supports -R BLOC — lbs. 2490 2820 3140 3600 2810 3170 3520 4030 3120 3520 3900 3730 ` 4� 230� 710' '5406 [ 4210. 4760; {0 5270 6040 4680 5280 i' 5840 4980 5640 6270 72,00 5610 6340 7030 8060 6240 7040 7790 6220 7040 �' 7840 L 7010 j 7920 ;; 8790 7800 8800 9730 of AL - PHILLIP J. LNISINLLN ff2} N0. .� A 32035 �feSSionol E�9�c0 June 1, 2015 • -I Manufacturer's Installation Manual - June 2015 i 19 STEP 3. DESIGN FRAME AND PERIMETER SUPPORTS (Homes With Perimeter Blocking) DETERMINE LOCATIONS Depending on design and location, some homes require regularly spaced perimeter sup- ports along all of the sidewalls and marriage walls in addition to frame supports. This will be indicated on the data plate and/or documents included with the home. If required, perimeter supports are only -needed on bearing walls. Bearing walls are those walls that support the ends of roof trusses or rafters (typically sidewalls and marriage walls but not end walls of main units or sidewalls of tag units). To minimize the number of required perimeter supports, space them evenly between point load supports as shown in Figure 11 and Figure 12 (but not under spans). These figures identify typical support locations for homes requiring perimeter supports. Perimeter Blocking Piers Marriage Line Blocking Piers I -Beam Post Piers Perimeter Blocking Piers Door Piers Door or Opening Less Then 48 In. in Width Beam Ilne supports CALCULATE LOADS Use Table 7 to determine the loads on fram( perimeter blocking. Find the column with the the group of rows corresponding to the selec secting cells are the loads for the frame, peri tively. Piers Sized k Span B I -Beam Frame Marriage Wall (Point Load) 'Piers Required at openings 4 Ft. or Greater Piers Combined Span (A-B) dge Beam Column Post or Well, Less Then 16 In. in Width — Span A Sized for -""'line support Sized Span A-B Span A and perimeter supports for homes requiring appropriate roof load and section width. Find Bd support spacing. The values in the inter- ieter, and marriage line supports respec- Loads on supports of a given type (frame, perimeter, or marriage) can be assumed to be equal if support spacing is equal. However, if different support spacings are used then each support with a different spacing should be calculated separately. Note the location and load required of each support on the sketch. V.' // Spacing frame supports. There must be a support located near the end of each I-beam such that there is no more than 24 inches of beam past the edge.of the support. Figure 11. Typical support locations for homes requiring perimeter supports Figure 12. Typical marriage line support locations for homes requiring perimeter supports Champion recommends that homes with tape and texture wall finish have perimeter support. 20 Manufacturer's Installation Manual - June 2015 n�Nur�erueeo ee�u.vuur• TABLE 7. LOAD ON FRAME AND PERIMETER#ITH MARRIAGE LINE SUPPORTS FOR HOMES REQUIRING PERIMETER BLOCKING — Ibs. .. •.• -I il 1 PSF Live Load 1 ... MIN spacing 1420 1620 d 1840 2120 1420 1620 1840 2120 411 1080 ii 1210 ° 1300 1480 (? 1390 n 1560 i 1680 a 1910 1800 2060 2340 2700 2310 2640 3010 3470 2120 I1 2420.;1 2760 3180 2120 1; 2420 2760 3180 1620 1810 1950 2220 2090 2340 2520 2870 Marriage 2700 ;I 3080 3510 4050 3470 3� 960 Fi 4510 5200 2830 3230 3680 4240 2830 3230 3680 4240 2150� 2� 410 2600 IL 2960 ( 2780 i; 3110 ri 3360 �! 3820 3600 4110 I 4680 5390 4620 5280 6010 6930 4040 4590 11 5300 i 3530 4040 4590 ° 5300 I 60 PSF Live Load 1420 1620 Vide 1840 18 Wide 2120 12 Wide 1420 14 Wide 1620 1840 1770 1910 2060 ii 2340 i 2340 I, 2620 2830 3230 3680 4240 3850 4400 5010 2120 2420 3180 2120 2420 n 2760 2560 4240 2860 1 i _ 4840 I1- 3090 5510 ��I 3510 6360 3510 5780 3920 6600 4220 7510 2830 3230 I 3680 4240 2830 3230 3680 8ft 3410 4120 (; 4680 ;I 4680 5230 jl 5630 14 5650 6460 7350 3530 ii 4040 n 4590 l 5300 ��( 3530 4040 4590 II 1 Roof Live Load. :1 PSF Live Load 1 11 PSF Live L ... 120 PS F Live Load LocationMaximum � spacing Frame 4 It 1420 2970 1620 � 2n 1840 3570 1420 3600 ;; 1620 4020 ; 1420 4230 . 1620 `f 4730 4880 5580 I„ 6340 5910 6750 6930 7920 2120 2420 I, 2760 n ;r 2120 $ 2420 2120 li 2420 ® 4450 4980 5350 - 5400 6030 6350 - 7320 a - 2830 3230 3680 2830 3230 2830 3230 �'. 5940 3530 R 4040 4590 3530 n 4040 3530 0 4040 of ALgeA� PHILLIP J. 9 CO Njl I At {t N NEER �} r} NO. { 32035 wil June 1, 2015 MANUTACTUARD •LAUTIFUIIY• Manufacturer's Installation Manual - June 2015 21 STEP 4. SELECT FOOTING MATERIAL Select one of the products and materials from Table 8 for the footings. TART C R CnnT1Mr_' MATFRIAI A Material Appropriate e • Minimum 6" thick poured -in -place concrete pads, slabs, or ribbons with at least a Poured concrete All soil types 28-day compressive strength of 3,000 psi. Cast -in -place concrete footings may also require reinforcing steel based on acceptable engineering practice, the design loads, and site specific soil conditions. Win imum 4 thick nominal', precast,concrete.pads'meeting or exceeding ASTM,C Pre -cast concrete hAll soil types '90-02a Standard Specification for Load Bearing Conciete-Masonry Units, without 28-day 2,500 .11reinforcement, .with at least a compressive strength:of psi Use in accordance with the pad manufacturer's instructions. Must be certified for ABS plastic Stable soils use in the soil classification at the site, listed and labeled for the required load ca- pacity. Proprietary•systems ,':Consultsystem,manufactl_er Con sultsystem�manufacturer. STEP 5. SIZE FOOTINGS Once the load on the footing and the soil -be l ring capacity are known, calculate the size of each footing as follows: 1. From Table 9 determine if the pier is to be of single -stack blocks (8 inch x16 inch) or double -stack blocks (16 inch x 16 inch) pier. 2. Locate the group of rows in Table 10 with the soil -bearing capacity determined in Prepare the Site, STEP 5. DETERMINE SOIL -BEARING CAPACITY AND FROST LINE (p. 12). Use the next lowest value if the exact value does not ap- pear. 3. Read across the table to determinelthe minimum required footing area and the minimum footing thickness for the corresponding footing type (single or double - stacked blocks). 4. The required footing size may be changed by selecting another support spacing (Table 6 or Table 7). TABLE 9. PIER CONFIGURATION Less than 36' in (except corner Single -stack blocks with long side . �}8 000. piers more than 3 blocks high) 'perpendicular to I-beam r Between 36 in and 67 in and cor- Double, interlocked blocks 16,000 lbs. ner piers over 3 blocks high 54 in or lessS ngle-stack blocks with long side f8,000 Ibs:' a,paraIlel to perimeter;rail (rim joist) ` S ngle-stack blocks with long side 54 in or less perpendicular to the marriage line 8,000 lbs. Between 54 in and 80 inch Double, interlocked blocks 9v1,6,000,lbs tl I fi ' // Frost protection. When se- lecting footing materials, bear in mind the need for frost protection. Not all footing materials are suita- ble for freezing climates... June 1, 2015 22 Manuracturer's Installation Manual - June 2015 MANUPACTU0.EDlEAUTIiUIIY- TABLE 10. FOOTING DIMENSIONS pier .. . . blocks)■. UnreinforcedCapacity (sq. in.) Dimensions (in) Soil Minimum Min Cast-in-Placei, Maximum i,,, Equivalent ■ 256 16 x 16 118 6 1640 6 1640 384 L 24 x 16 ~� 23 1�61000 2460 6-- 2460 �28 576 24 x 24 L 32 8 3600 6 3700 ' 46�_.12 _ _ j� 6420 L _ _. 81L 1296 36 x 36 10 780 70 2304 48 x 48 54 20 1�8000 16 12800 256 16 x 16 384 24 x 16 18 6 2530 6 2530 23 6 j 3800 6 3800 576 24 x 24 �� 28 8 5600 6 5700 36 _ 12�� 8000 9950 1024 32 x 32 1296 36 x 36 141 - - 10 12370 2304 48 x 48 54 - 16 I 16000 256 16 x 16 18 6 3420 6 3420 384 6 24 x 16 = 23 ��- 6-- F 5130-1[�6 ____] 5130 2000 576 24 x 24 28 8 7600 6 7700 1024 l 32 x 32 �I^36 - 12 8000 8 ^� 13510 1296 36 x 36 41 - 10 16000 � I ) F 256 16 x 16 384 4 6 2x 1 18 6 4310 6 4310 6. 23 6 6460 6 6460 00 576 24 x 24 28 8 8000 6 9700 1024 32 x 32 36. L =E= F IF 16000 256 16 x 16 18 6 5200 6 5200 ------------- 3�- 84 +j 24 x 1�I 23 6 �66 7800�� 6� 7800 000 576 24 x 24 28 8 8000 6 11700 1024 11L 32 x 32 36- g --]16000 256 16 x 16 18 6 6970 6 6970 000 384 24,x 16 23 °6 8000 '6 10460 576 24 x 24 28 - - 6 15700 1024 1 32 x 32 I 36 � ° i 16000 Note: The capacity values listed have been reduced by the dead load of the concrete footing. Design footings to comply with the following additional requirements: • Design each footing at least slightly larger than'the base of the pier it supports. QF AL • To keep footings directly under I -beams and other support points, size them slightly larg- erPEE qBq than the minimum required area to allow slight adjustment of the pier location during `'� PHILLIP home installation. C0P ND • Design footings with a footing extension (projection beyond the base of the pier) no FeSJ;10 11!A - greater than the footing thickness (Figure 13). Increase footing thickness if necessary. N�NO. ER � A 32035 �lftwonal E11,J June 1, 2015 Manufacturer's Installation Manual - June 2015 23 i 4" 6" i 4� Typg24" Footing Extends N O Extends By More YES By ItsThidmess Than Its Thickness / Or Less 4" 8" Split Footing Extends YES Less Than One Third Its width • The footing sizes shown are for (square inches) Design non-squ equal to or greater than the area ble 10, and the distance from the not more than the thickness of th • For four -inch thick unreinforced F footing size for the six-inch cast-i STEP 6. INSTALL FOOTINI Construct the footings as follows: • Maintain the distance between a spacing and so the average disc less than the tabulated spacing. • Whenever possible, place point tions. If plumbing, electrical, met no more than 6 inches in either i • Recess perimeter blocking supp than 10 inches from the edge of in Figure 14. Exteri 16" Block 16" 4" 4" Split Footing Extends N O More Than One Third Its width NO 1 s^ YES �\ uare pads and are based on the surface area e footings such that the area and depth is id depth of the square footing shown in Ta- Idge of the pier to the edge of the footing is footing. ;cast concrete footings, use the minimum place footing from Table 10. agent piers to within 10% of the tabulated ce between any adjacent spans is equal to or supports directly under the required loca- lical equipment interferes, place supports :tion of the support point. and perimeter point load supports no more floor with added support as shown Pressure treated 4 x Igo (Nailed Tog um 2 Floor Jols Plate Rlm 0" Max settiac edge of Floo. Ical Floor a Figure 13. Maximum footing extensions Placing Concrete anchors If anchors will be placed it concrete, follow instruc- tions in Install Stabilizing System (p. 60) to deter- mine anchor layout. Either place anchors immediately after the concrete has been poured or drill them in after the concrete has set. Figure 14. Perimeter suppc • 24 Manufacturer's Installation Manual - June 2015 MANUTACIU tD .LAUYIIUIIY' • If footings are rectangular, orient them so the home's I-beam. • Place the bottom of footings on undisturb 90% of its maximum relative density. • In freezing climates protect footings from ance with any LAW requirements (see Pi tom of the footings below the frost line (in slabs are other frost protection options nc • Make sure the top surface of the footing i • In accordance with the American Concrel tain curing measures before construction ing begins, until a minimum of 70% of the strength has been achieved. The ACI red strength is seven days for ASTM C150 Tl mixtures. Full design live and dead loadsl duration has elapsed for achieving full str the long side is perpendicular to soil or fill compacted to at least the effects of frost heave in accord- •epare the Site, p. 10). Place the bot- sulated foundations and monolithic t covered in this manual). s level, flat, and smooth. e Institute publication ACI-308, main - or installation onto the concrete foot - specified 28-day compressive )mmended time to attain this level of rpe 1 mixtures and 10 days for Type II may not be applied until the 28-day Excavation. If excavation is required, mark the footing locations on the ground with stakes before beginning to dig. • I MANUFACTURED BEAUTIFULLY' Manufacturer's Installation Manual - June 2015 I 25 Construct Foundation (FOR HOMES WITH LOAD -BEARING PERIMETER WALL) This chapter provides guidelines and recimmendations for the design and construction of a basement or crawlspace foundation using a load -bearing perimeter, wall. A load -bearing perimeter wall foundation system uses a wall along the outer edge of the home to support the home's outside walls. This perimeter support works with interior supports such as piers, columns, and cross beams that support the home's frame and, if multi -section, marriage line. STEP 1. OBTAIN A FOUNDATION DESIGN (p. 26) STEP 2.. EXCAVATE (p. 26) STEP 3., CONSTRUCT THE FOOTING OR SLAB (p. 26) STEP 4. CONSTRUCT THE PERIMETER WALL (p. 26) STEP 5. INSTALL INTERIOR SUPPORTS (p. 27) STEP 6. DAMP PROOF FOUNDATION WALL (p. 27) w STEP 7. BACKFILL AND GRADE (p. 27) STEP 1. OBTAIN A FOUND I TION DESIGN V&Irzz If a load -bearing perimeter wall foundation idesign has not been provided by the home manufacturer, it is the responsibility of the retailer and/or home owner to provide a de- Using engineered designs. sign approved by a professional engineer or registered architect. The approved design This section is NOT intend - must comply with the LAHJ regulations for foundation design, waterproofing, and ed to provide a complete drainage, and the following: design for a buildable foun- • The foundation perimeter bearing wall must be supported with a concrete slab dation. A complete design or continuous strip footing around the perimeter of the home. Interior piers must be obtained that is must be supported by a slab or footings. If footings are used under interior suitable for the local area piers, they may be designed as in Install Footings, p. 15. and sealed by a professional • Slabs must extend to the edges of the home. engineer or registered archi- tect. • Footings and slabs must be protected from the effects of frost heave by ex- tending the footings to or below the frost line or by using a frost protected Foundation ready home. shallow foundation design. Make sure that homes to be installed on a basement or a crawlspace have been or - STEP 2. EXCAVATE dered with a recessed frame Excavate for the foundation, properly disposing of the earth that is not needed for or as foundation -ready, backfill or site -grading purposes. where the frame is designed to avoid interference with the STEP 3. CONSTRUCT THE FOOTINGS OR SLAB foundation wall. Construct the foundation according to the approved design, including the perimeter Checking the water table. Fc foundation wall, drainage system, footing(s),, and/or slab. basements, check for a high water table. The water table STEP 4. CONSTRUCT THE PERIMETER WALL may vary seasonally or base I Unless the approved design requires otherwise, construct the perimeter wall with mor- on weather conditions. A ge- tared and reinforced concrete blocks or reinforced poured -in -place concrete. Install re- test to determine the water inforcement according to the approved design or LAHJ. Install ventilation and access table level. The foundation openings according to the approved design,li or if not specified, according to the re- design must account for a quirements in Complete Exterior Work, STEP 3 INSTALL SKIRTING (p. 90). high water table. • 26 Man facturer's Installation Manual - June 2015 MANUEAETURED READT EDIIY- I When constructing pockets for an H-beam system, measure the beam depth and Level the wall. Make sure locate the pockets carefully. It is critical that when the home's frame rests on top of the foundation is level and the H-beam, the perimeter of the floor rests squarely on the extended foundation straight with no more than a wall. Leave room for a spacer on top of the wall pockets (to prevent corrosion, the 1/4 inch vertical variation steel beams must not be in direct contact with concrete). Leave at least one inch for over the entire foundation thermal expansion at the ends of the beams and T aintain a minimum of two inches and no more than 1/8 inch of bearing area for the beams in the pockets (yielding a minimum pocket depth of vertical variation over any three inches). two -foot length. Bolt a pressure treated wood sill plate (minimum 2 x 6) to the top of the foundation Check for Plates. When us- ing an H-beam system, wall. Connect the home to the foundation according to the approved design. Re- check and compensate for cess nuts into the sill plate and cut off the ends o , bolts so they do not project above reinforcement plates that the sill plate and interfere with the placement of the home. add thickness to the chas- sis beam at axle locations. Figure 15. Omitted Figure 16.Omitted STEP 5. INSTALL INTERIOR SU�PORTS Install piers, columns and H-beams to support the interior of the home according to the approved design. STEP 6. DAMP PROOF FOUNDATION WALL Damp proof the foundation wall no less than up to the height of the planned backfill. Is this a basement • •. • 1110YES, • • to • Limits of exca- 1110- • • to STEP 7. BACKFILL AND GRADE,• vation. When a crane will be used, excavate no more than two feet outside the foundation perimeter. Un- STEP 7. BACKFILL AND GRADE excavated ground will pro- vide against the foundation wall to the height of the dam vide a more stable base for g g � p proofing. Take care to not the crane. damage the drainage system. Grade the fill as per Prepare the Site (p. 10). Footing heights. Pour foot- ings to a height that will re- duce the need to cut blocks or shim when building peri- meter walls and piers. i i 0 Backfilling. Backfill against basement walls only after the home is connected to u the foundation or the basement walls may deflect inward or collapse. Manufacturer's Installation Manual - June 2015 27 Set the Home This chapter describes the process of installing the first section of the home (for single section homes this is the only sec- tion) onto the foundation. STEP 1. PREPARE FOR SET Before beginning the home set, complete the following: • Confirm that the site is properly cleared and graded (see Prepare the Site, p. 10.) • Ensure that the footings are in place and properly located. • Install any utilities that will be difficult to install (e.g. those below grade beneath the home) after the home is in place. • Secure or remove from the home and properly store all ship loose items (refer to shipping documents for items s i ipped with the home). • Inspect the home interior, exterior and all provided materials, appliances, and equipment. Immediately report any damage or shortages to the manufacturer. • The ground moisture retarder may be installed now or after the home is com- plete. See Complete Exterior Wo k, STEP 2. INSTALL GROUND MOISTURE RETARDER (p. 89) for requirement and then return here. For perimeter bearing wall foundations: • Check that the length and width oflthe home match with the foundation walls. • Check that the two main diagonal measurements of the foundation are equal. • Check that the foundation walls and other support points are within 1/4 inch of level overall and within 1/8 inch of level within any four foot distance. • For multi -section homes, check that each pair of diagonal measurements for each portion of the foundation corresponding to a home section are equal. • For multi -section homes, find the electrical bonding lugs on the front or rear outriggers. Reverse them to the inside of the outrigger using star washers so they will be accessible after the home is placed on the foundation walls. • If using an H-beam system, remove the frame's shackle hanger if it will inter- fere with proper placement of the beam. STEP 2. POSITION HOME SECTION Position the home section in its final location! (if possible, move the heaviest section of the home into place first). Then place materials needed to construct support piers near their final locations under the home as determined in Install Footings, (p. 15). STEP 3. LIFT HOME There are three primary methods available rolling and craning. Jacks, often with roller foundations; roller systems are commonly i bearing perimeter walls; and cranes are me place the home on the foundation: jacking, stems, are typically used for pier and anchor :d for crawlspace foundations with load - commonly used for basement foundations. i ' /, Clearances under the home. After the home is leveled, the resulting dis- tance between the bottom of the entire chassis main frame beam and the ground must be no less than 12 inches. Utilize proper cribbing. Manufactured homes weigh several tons. No one should be under the home (whether it is mov- ing or stationary) unless proper cribbing is in place (Figure 17). Failure to uti- lize proper cribbing may result in serious injury or death. Leveling during jacking. Keep the home's floor as level as possible during jacking. Twisting or warping the floor can dam- age the structure and finish- ing. Use as many jacks as necessary to keep the floor flat and level. • 28 Man ifacturer's Installation Manual - June 2015 MANUTACTUiED BEAUTIIULIY' JACKS If jacks are to be used, comply with all jacking safety precautions and the procedure below. Lifting the home with jacks involves potential risks and must be done with ut- most care and caution. Failure to follow jacking warnings and procedures may result in serious injury or death. Please read the Jacking Safety Precautions before lifting the home with jacks. • No one should be under the home while the jacks are being operated or while the home is supported only on the jacks. • Use jacks only for raising the home. Do not rely on the jacks to support the home. • If possible, raise the home only on one side so that the other side is in contact with the ground. Leave the hitch connected to the vehicle or other stabilizing equipment. • Obey all OSHA regulations. • Make sure adequate safety, cribbing (Figure 17) is in place whenever the home is placed on jacks. • Use a minimum of two commercial quality jacks, each with a rating of at least 12 tons. • Jack only on the main chassis I-beam, centering jacks directly under the beam. • Do not jack on a seam (joint between flanges of twin 1-beams). • To distribute the concentrated loads from jacks. to I-beam, place a minimum 3/8-inch thick steel plate, a C-channel, a 1'/z-inch thick hardwood block or a commercial jacking plate, between the main chassis I-beam and the jack head. • Locate the jack base on firm ground. Never jack on freshly disturbed soil or where an underground sewer pipe may be located. • Use a firm support under the jack base to prevent tipping or settling of the jack. A minimum 16" x 16" or larger wood or rigid fiberglass pad is recommended. Never use concrete blocks as a support for a jack. Follow the jacking sequence outlined below to avoid overstressing structural members: 1. Block wheels. Block the wheels so the Ihouse does not roll. 2. Install cribbing. Install safety cribbing (Figure 17). I -- --- -J 3. Level lengthwise. Locate one jack at the hitch and level the section length- wise (such that the front and rear of the' section are at the same height). 1 4. Locate frame jacks. Place a minimumlof one jack just forward of the first spring hanger and another just behind the last spring hanger of the I-beam on the side of the home that is lowest (making sure not to place jacks where the piers will go). Place jacks no more than 120 feet apart and no more than 20 feet from each end of the I-beam. 5. Lift the home. Operating the jacks simultaneously (or sequentially in very small increments), lift the home section until it is slightly higher than the final desired pier height. Figure 17. Stack 4"x 6"by 5' long timbers as shown to form safety timbers. Place safety timbers under home behind axle area and under hitch. MANUFACTURED BEAUTIFULLY' Manufacturer's Installation Manual - June 2015 29 ROLLER SYSTEMS When using a roller system, comply with the equipment manufacturer's directions and the following sequence: 1. Establish staging area. Establish a staging area directly adjacent to one or both sides of the foundation. 2. Setup rollers. Set up the roller system according to the equipment manufac- turer's directions. 3. Fasten bump blocks. Temporar plates at the ends of the foundatii sired location. 4. Roll home. Roll the home into pl, 5. Remove bump blocks. Remove of a multi -section home. CRANES When using a crane, follow these guidelin( fasten wooden bump blocks on the sill to stop the home from rolling at the de - over the foundation. blocks before installing the next section • Position the home section(s) and 'crane (taking the boom reach into consider- ation) such that they do not have to be repositioned during the set. • Use enough properly sized straps to maintain balance of the home and to prevent damage to the structure. • Place straps under walls or posts, including temporary posts used to support the opening. Do not position lifting straps under marriage wall openings. • Use a properly sized spreader bar, to maintain a vertical lift, to avoid placing compression forces on the eaves and to reduce any tendency to slip. • Connect a rope to at least one poi�t on the home so it can be controlled while aloft. • Make provisions to retrieve the straps/cables after the home is set. If using a cradle system, notch the sill plate where the straps will fall. For a sling sys- tem, notch and reinforce the home's rim joist to keep the strap from slipping and allow the strap to be removedl after the home is set. • Always set the home section farthest from the crane first so that subsequent section(s) need not be lifted over previously set sections. STEP 4. CONSTRUCT PIERS For the side of the home section that is up on jacks, place piers on footings or pads fol- lowing the home manufacturer's blocking plan (or tags). If no plan was provided, use the support plan developed in Install Footings (p. 15). Start at one end of the home section and work toward the other noting the' i required pier material specifications and procedure described below. Construct piers so as to provide a stable foundation for the home using materials listed in the specifications box below and based on the location of the pier and its height as measured from the top of the footing or pad to the top of the cap. See Table 12 for pier construction requirements. V&10PZ1Z No one should be under the home while it is suspended. Never put your hands betwei the house and the perimeter walls and support beams V&F*Irzzj Designing piers. Incorrect size, location or spacing of piers may result in serious structural damage to the home. Install piers at all re- quired locations. Failure to so may lead to sagging floors, walls, and roofs, and could void the home's war- ranty. 1111104MMAVAIN11111109 30 Manufacturer's Installation Manual - June 2015 MANVEACTU¢¢D BEAUTIEVIIY' i TABLE 11. PIER MATERIAL MINIMUM SPECIFICATIONS ------ Component Specification BlockConcrete Nominal dimensions of at least 8" x 8" x 16";conforming to ASTM designation C90, grade N. Solid masonry (nominal 4" x 8" x 16" pre -cast concrete without reinforcement); pressure treated lumber Caps (nominal 2' x 8" x 16"); or teel (minimum 1/2" thick, corrosion protected by a min. of a 10 mil coating of an exterior paint or equivalent. • " Nominal 2" thick boards. (Two layers maximum) Tack double layers to hold in place. Hardwood, Southern Pine for Douglas Fir Larch, minimum 4" width by minimum 6" length by maximum 1" " thick (nominal); plastic mu, t be listed with maximum load capacity; used in pairs. Available in various sizes stamped with maximum load capacity and listed or labeled for the required verti- Commercial metal or • cal load capacity, and where required by design, for the appropriate horizontal load capacity. Metal or concretecast piers other manufactured piers must be provided with protection against weather deterioration and corrosion at least equivalent to that provided by a coating of zinc on steel of .30 oz per sq. ft of surface coated. Pressure treated .•. With a water -borne prese' ative, in accordance with AWPA Standard U1-04 for Use Category 4B ground contact aplications. TART R 47 DIFD r'nFJCTD11f T1nM * Construct perimeter and marriage line piers over 80 inches according to the requirements for frame piers of the same height. Prepare footing surface. Make sure the footing surface upon which the pier sits is flat and smooth. Before placing the pier on the footing, clean dirt, rocks, or other material off the surface of the footing. For cast -in -place concrete foot- ings, if the footing surface is uneven, create a level, flat surface by placing a treated board on the footing and mortaring on the first block (or manufactured pier base), or by placing the first block (or manufactured pier base) on a layer of premix dry sand mortar. 2. Stack blocks. Stack concrete blocks with their hollow cells aligned vertically. When piers are constructed of blocks stacked side -by -side, orient each layer at right angles to the previous one (Figure 18) and plan blocks so that split caps will be perpendicular to the blocks they rest on and to the I-beam. AIN2NGN00332 �ss/onolETQ% {� June 1, 2015 MA„".A�,"ae" BEAUTIFULLY- Manufacturer's Installation Manual - June 2015 31 Mdn I Wood Shlma to Rl Gqauptollma 00"2di Spam 4m;cle came Cep m2deA5 P.T. or 1/T steel ConOWA &odt TOW Fod-9 3. Cap piers. Place a cap on hollow load. Use caps the same length ai using split caps on double -stacker dimension perpendicular to the joi beam. Install shims. Use shims to level base of the I-beam and the top of (Figure 19). Drive them in tightly vertical space. When the space to less than the minimum thickness c hardwood, southern pine or Dougl (two layers maximum) or 2" or 4" t shims and dimensional lumber/blc ]-Beam Shims Spacer lock piers to evenly distribute the structural 1 width as the piers they rest upon. When block piers, install the caps with the long t in the blocks below and to the main I- e home and fill any gaps between the e pier cap. Always use shims in pairs they do not occupy more than one inch of e shimmed is greater than one inch and available caps or concrete blocks, use fir larch dimensional lumber 2x spacer ck concrete block. For split caps, install cs over each individual cap. 5. Set up level. Set up a water level I ith the fluid level at the desired height of the main piers. Carefully lower the side of the section down onto the leveled piers, adjusting the final height with shims. Figure 18. Frame pier construction i 1 // Curing time of mortar. Where wet mortar is used tc construct or level piers, al- low it to cure to at least 80%U of strength capacity (usually requiring 96 hours) before setting the home. Figure 19. Correct shim placement Dimensions of masonry perimeter walls. If using a masonry perimete enclosure, calculate pier heights so that the enclo- sure can be built using standard unit dimensions (without cutting). 32 Manufacturer's Installation Manual - June 2015 1 MANU/ '.... ILAUTIrULIY• USING A WATER LEVEL A water level is a standard device for leveling the home. The level consists of the following components: One container (five gallon bucket or one gallon jug). • 150 feet of 1/2 inch diameter plastic tubing. • Fittings for container to tubing. Valve for terminal end of tubing. • Liquid for system: colored water in warm climates, windshield washing fluid in cold climates. V.. Chess§ MC - npher—_—WeterLh____ i Ir Pier How to use a water level a. Position level. Position the level such that it can reach all piers. b. Place container. Place the container so that the fluid in the con- tainer is at the same level as the desired level of the top of the supports under the home, allowing for any bracing below the lev- el of the I -beams. c. Uncoil tubing. Uncoil the tubing and fill with fluid, taking care not to introduce bubbles into the hose. Never allow anything to crimp or crush the tubing so as to impede the free flow of fluid. d. Bleed air. Hold the valve below the level of the water container; open the valve to bleed out any air and close the valve. e. Establish. height. Locate the tubing adjacent to, a pier that is set to the desired final height. Position the valve above the pier and open the valve. Move the water container up or down to where the water level is at the desired final height of the pier. Maintain the water container in that position and close the valve. f. Level piers. Move the tubing to the next pier. Hold the valve above the pier and open it. Set the pier height,to the level of the water in the tubing and close the valve. Repeat this step until all 6. Complete the opposite side. Jack the other side of the section up and install piers following the instructions above. At the completion of this step, the sec- tion should be level from front to rear and from side to side. 7. Install perimeter and marriage line piers. Install perimeter piers and for multi -section homes, marriage line piers. Position marriage line piers to pro- vide equal bearing for both mating sections. 8. Remove running gear. Remove and store, recycle or properly dispose of the hitch, axles, and wheels. These items- are the property of the homeowner un- less other contractual arrangements have been made. i I // Level the home. The home is adequately leveled if there is no more than 1/4 inch differ- ence between adjacent pier supports (frame or perime- ter) and the exterior doors and windows of the home do not bind and can be properly operated. Water level operation. To operate the water level properly, both ends of the system must be open to the atmosphere and there must be approximately the same amount of fluid in the tubing at all times (within a few inches). • M.„�,....... ...",U„Y- Manufacturer's Installation Manual June 2015 33 Complete Multi -Section Set This chapter covers the preparation and installation of additional home sections, including the structural connections be- tween units, raising and fastening hinged roofs, and fastening the home to a load -bearing perimeter wall foundation. STEP 1. MARRIAGE LINE ANCHORS (p. 34) STEP 2. REMOVE PROTECTIVE SHIPPING MATERIALS (p. 34) STEP 3. COMPLETE HINGED ROOF (p. 34) t , STEP 4. REPAIR OR INSTALL MARRIAGE LINE GASKET (p. 36) i STEP 5. POSITION' ADDITIONAL HOME SECTIONS (p.37) STEP 6. CONNECT FLOORS (p; 37) STEP 7. CONNECT ROOF (p. 39): STEP 8. CONNECT WALLS (p. 0) STEP 9. ATTACH TAG UNITS OR (AC) GARAGE (p. 42) I STEP 10. REMOVE TEMPORARY• ITEMS (p. 43) 1 STEP 11. FASTEN HOME TO FOUNDATION (p. 43) a STEP 12. BACKFILL AND GRADE (p. 43) STEP 13. BUILD STAIRS (p. 43) }(: STEP 1. MARRIAGE LINE ANCHORS Ground anchors along the marriage line are notrequired (unless called out in installation / // addendum). STEP 2. REMOVE PROTECTIVE SHIPPING MATERIALS Position roof jacks. Posi- tion jacks vertically to pre - Remove all shipping protection and associated fasteners from both home sections to be vent the jack foot from kick - joined, including plastic used to close up the open sides during transportation. Do not re- ing out or sliding. move the temporary supports holding up the ceilings at major openings. Caution during roof rais- ing. Do not enter the roof STEP 3. COMPLETE HINGED ROOF cavity during the raising If the home has a hinged roof that has been folded down for shipping, raise the roof using a procedure. crane or roof jacks following the procedure below: Checklists for alternate 1. Position lift points. Position the roof lift points (jacks or crane lift points) following construction. If the serial the jack manufacturer or crane operator instructions. Space roof lift points equally number (see the data plate along the length of the roof with no more than five feet from the end of the roof to or the chassis front cross the first or last lift points. Use three lift points for a roof up to 48 feet long (exclud- member) has the letters ing overhangs), four lift points for up to 60 feet, and five lift points for up to 72 feet. "AC" in the serial number, 2. Remove fasteners. Remove any temporary fasteners connecting the hinged por- then the Alternate Con- tion of the roof to the vertical king posts! struction on -site check list 3. Lift roof. Raise the roof to its intended height. A temporary slight overextension supplied with the home may be required during lifting. However! take care not to overextend the roof and must be completed and re - damage the hinge. Raise the roof evenly in small increments, keeping it level turned to the home manu- throughout the entire process to prevent racking. Do not allow roofing paper and facturer in a timely manner. shingles to get caught in the hinge crease. If the AC checklist relates to the roof, then failure to do so may require future 34 Manufacturer's Installation Manual - June 2015 MANUiACTUQEO QEAUTIf ULLY' 4. Secure king posts. Position the hinged ki the fixed king posts or against the wooden either hinged to the underside of the hinge a knee wall stored in the roof cavity. Positi aligning each king post with the king post ( place per hinged roof truss installation add —Wall 5. Install Bracing. Install diagonal bracing from the top of the gable end truss appn Keep trusses plumb and secure the bra( minimum staples per truss (Figure 22). posts (may be a knee wall) atop )p (Figure 20). The king posts are russ top chord or shipped loose as them as needed to level the roof, :ctly beneath it, and securing it in dum. both ends of each home section mately 45 degrees downward. with two (2) 7/16" x 2-1/2" x 15 ga Post End Trusses I Unfold double hinge. If the roof has a double hinge top chord, unfold the second hinge and secure per double hinged top chord roof truss installation addendum. (Figure 23). Fasten sheathing. Fasten sheathing from the upper portion of the roof to the lower fixed portion of the roof just below hinges with two (2) 15ga staples or 8d nails at each truss (Figure 24) or, If wood blocking is present, at six inches o.c. along blocking. i Hinge Roof *Hinga King Post 8. Redistribute Insulation. Before closing up the attic space check that the insu- lation has not shifted. Re -level the insulation if needed. 9. Install gable walls. Assembled frames or wall studs and sheathing needed for the site assembly of the gable end walls and interior shear wall knee walls (if present) may be provided. Install the gable end walls for each home section as follows (Figure 25): • Frames: fasten frames to truss top chord and web, or, • Studs: Install studs 16 inches o.c.,' and; • Sheathing: Install sheathing. disassembly of the roof and further inspections. Figure 20. (Left) Hinged roof truss (drawing is typical, actual truss configuration may vary) Figure 21. (Right) Hinged king post to fixed king post (drawing is typical, actual truss configuration may vary) Figure 22.Typical Diagonal bracing. Also, see hinged roof truss installation addendum. Figure 23. (Left) Double hinged top chord (AC Letter required) Figure 24. (Right) Sheathing at hinge line Las I MANUFACTURED BEAUTUiU„y- Manufacturer's Installation Manual - June 2015 35 10. Install vents. Extend plumbing place stacks through the hinged this manual (Prepare Appliance mental instructions provided by King Post STEP 4. REPAIR OR INSTAI A continuous, non -porous gasket creating e at least one side of the marriage line; along riage lines for any tag units). The manufacti ther installed on the home or shipped loose any gaps or tears. King Post Truss Top Chord inge -its, exhaust fans, appliance vents, and fire- )rtion of the roof in strict accordance with and Equipment, p. 79) and/or supple- : home manufacturer. Assemby L MARRIAGE LINE GASKET permanent air barrier must be installed on :he floor, end walls and ceiling (and mar- rer has provided a marriage line gasket ei- If installed, inspect the gasket and repair If not installed at the factory, install a continuous gasket between the home sections along the floor, end walls, and ceiling (Figure 28). For homes with through -the -rim crossover d inspect and if necessary, repair gaskets aro inch thick fiberglass duct board or other mat sure that duct openings are unobstructed (F cts (see Crossover Connections, p. 49) nd the rim joist duct openings using 3/4- rial acceptable to the manufacturer. En- 3ure 27). Figure 25. End wall comple- tion. See hinged roof truss installation addendum. ' //I Inspecting vents. Fuel fired heating appliance and fire- place vents that pass through a hinged roof must be completed and inspect- ed at the site prior to ener- gizing the appliance or oc- cupying the home. Failure to comply with this precau- tion may result in serious injury or death. Venting systems must be installed in conformance with the appliance manufacturer's instructions and any in- structions supplied with the home. (AC letter required) Figure 26. Ridge cap assembly. (AC Letter Required) V&rorzz Checking through -the -rim - ducts. Ensure that through - the -rim -duct connections are secure and tight after the home sections are to- gether. Figure 27. In -floor duct showing crossover through rim joist • 36 Manufacturer's Installation Manual - June 2015 1.11-11.1- ..e.oTuour- A CONTINUOUS. NON —POROUS GASKET WITH A MINIMUM THICKNESS OF 1 1/4- AND INSTALL PER MANUFACTURER'S INSTALLATION INSTRUCTIONS ON ONE SIDE OF THE MARRIAGE LINE(S). GASKET MAY HAVE BEEN INSTALLED AT THE FACTORY OR SHIPPED LOOSE WITH HOME. — re' pJ{ INSTALL 3/4- DUCT BOARD GASKET AROUND ALL INTERNAL CROSSOVER DUCTS. DO NOT PLACE GASKET IN A POSITION WHERE IT WILL RESTRICT AIR FLOW AT INTERNAL CROSSOVER DUCTS. STEP S. POSITION ADDITIONAL HOME SECTIONS Follow this procedure to install additional home sections: 1. Remove obstructions. Remove protruding nails and staples or anything else that will keep the home sections from fitting together snugly. If present, cut the temporary ceiling and floor plates at thel edges of marriage line openings tak- ing care not to damage ceiling or floor coverings or displace temporary mar- riage line support posts (these supportsl and the plates will be removed after the home sections have been structurally connected). 2. Complete crossovers. Before moving the two sections together, complete any crossover connections that require-laccess from the open marriage line, including the attic duct connection (if present) and marriage wall interior elec- trical connections (see Connect Crossovers, p.49). 3. Position section. Position the section as closely as possible (ideally within six inches) and line up with the previously set section. If using a mechanical positioning system or crane, follow the system manufacturer's instructions or the crane operator's directions. 4. Construct piers. With the outside walls of the home aligned, construct the piers for the home section according to the instructions in Set the Home (p. 28) before continuing to the steps below. 5. Level section. Lower the section onto jthe outside piers first, inside piers last. Before releasing the mechanical positioning system, check interior doorways and other openings for misalignments that may cause problems during trim - out. The floors should be flush, level, and tight and the roof section should have little, if any, gap at the top of the marriage line. Use at least two come -a - longs to pull the sections snugly together and use the water level or other lev- eling device to set all piers and shims.) 6. Shim gaps. Shim any gaps up to one finch between structural elements with dimensional lumber. If any gaps exceed one inch, re -position the home to eliminate such gaps. I i STEP 6. CONNECT FLOORS Make floor structural connections according to the method described below. Install toed fasteners through bottom board Install fasteners at approximately a 45 degree angle (+/- 5 degrees) from horizontal as shown in (Figure 29) using the fastener type, size, and spacing indicated on Table 13. TABLE 13. FLOOR CONNECTION FASTENING SPECIFICATIONS Increase fastener lengths by 3 inches for double rim joists. MANUFACTURED 1EAUTITUlly. Manufacturer's Installation Manual - June 2015 Figure 28. Marriage Line Gasket Mechanical posi- tioning system. For a pier - set home, a mechanical positioning system (such as a roller system) will make the process easier and saf- er and be less likely to damage the home. Sealing gaps. Prior to com- pletion of the exterior close- up, gaps that do not exceed one inch are permitted be- tween structural elements provided that the gaps are closed before completion. of close-up, the home sec- tions are in contact with each other, and the mar- riage gasket provides a proper seal. OF ALge y 9 PHILLIP J. 9 .CO ND I At x N NEER i} 32035 A � 0 �rassfonal En9tin0 June 1, 2015 37 Marriage Line oor uecKing Rim Joist Fastener Stagger fasteners on either side of marriage line and offset them by half the spacing distance (Figure 30). 1 Location Line 1 1I I Half Spacing Spacing From K Table Spacing z From Spacing Table From K Table Spacing Half K From Spacing Table K Install additional fasteners as indicated below, making sure to repair any openings in the bottom board with tape specially made for that purpose (may be provided). • Install two additional fasteners at each end of the home at approximately a 45 degree angle (+/- 5 degrees) from horizontal. • If the home has a through -the -rim crIossover duct, install one additional fas- tener at each side of the duct opening. • Optional - In Wind Zones II and III, fasten additional metal straps of minimum 26 gauge, 1-1/2" wide galvanized steel spaced per Table 14 and fastened per Table 15 to the underside of the floor joists (Figure 31). Select a strap length sufficient to hold the required fasteners. TABLE 14 MAXIMUM STRAP SPACING Roof slope'Wind-Zone Up to 4-in-12 96 in. 1 80 in. Over4-in-12 ' . 48 in:.°,�. S 48 in. TABLE 15. STRAP FASTENING MINIMUM 1SPECIFICATIONS Galvanized staples 16ga 7/16" x 1" penetration 12 each side Roofing"•nails--1=1/2" long ' 9 each side- 38 Manufacturer's Installation Manual - June 2015 Figure 29. Floor connection through bottom board (Fas- teners must penetrate the rim joist by a minimum of 1 inches) Figure 30. Staggered offset fastening along marriage line Patch bottom board. Use adhesive spray, mastic, and/or diver- gent staples in combination with bottom board tape for a more secure and durable connection. of ALgB 9 PHILLIP J. 9 _C0P ND �10 lAk Nl;IFJEERO. a} 203 35 A a< afes4onai Er, June 1, 2015 �MANUE. 1, Floor Joist Metal Strap Marriage Line ;�—Marriage Line Floor Flo ,or Jolst— Decking strap STEP 7. CONNECT ROOF If the marriage line along the roof is not snug, position jacks every 20 feet or less along the outside I-beam and uniformly lift the section u til the roof area is tight. Check to make sure the ceiling joint is flush before installing the connections. If not, use a jack and tee to raise whichever ceiling is low, starting at the front and working to the rear of the home. Fasten the roof along the marriage line for either double or triple - section homes. DOUBLE -SECTION HOMES Make roof structural connections in double -section homes as described below Install toed fasteners through roof sheathing Install the fasteners through the roof deck into the ridge beams or roof rails at an ap- proximately 45 degree angle (+/- 5 degrees) from horizontal (Figure 32) according to the fastener spacing and specifications in Table 16. Stagger fasteners on each side of marriage line and offset them by half the spacing I distance (Figure 30). Spacing indi- cated is on -center, both sides of ridge. Make sure fasteners penetrate the ridge beam/rail by a minimum of 1-1/2 inches both sides of ridge. Fasteners Roof Sheathing Approx. 45 1 I � � I Ridge Beam ` TABLE 16. ROOF CONNECTIONS SPECIFIC;IATIONS Lag screw with washer 5/16" x 6" 28 in. 20 in. 12 in. Wood screw #10 x 5" 118 in. it - Optional - In Wind Zones II and III install additional metal cap or straps as follows: Caps • Select metal caps made of minimum 8" x 30 ga galvanized steel or 0.019" aluminum. • Install caps continuously, overlapping by minimum of four inches at splices. • Fasten caps with 1" x 1" x 16 ga galvanized staples or 12 ga 1-1/4" long x 3/8" diameter head roof nails or #8 x 1-1/C sheet metal screws at two inches o.c. both sides of ridge. Figure 31. Metal strapping for Wind Zones 11 and 111 ZZ Closing the roof gap. Level and fasten the marriage line joint at the floor before jacking to tighten a roof gap. DO NOT use roof fas- teners to close any gaps. Separation of the ridge beams and trusses may occur. Figure 32. Toed fasteners through roof sheathing pf AL4 PHILLIP J. 9 COP NQ I At {z NGINEER is z} NO. �z 32035 A C( �r%,... I En9�n0 June 1, 2015 Y , // Installing lags. If lags are used to connect roofs, use appropriately sized wash- ers, countersink the fasten- er heads and fill the coun- tersink holes with putty or caulk to prevent shingles MA— A.I.pe„eAUT11ULY. Manufacturer's Installation Manual - June 2015 39 Straps • Select metal straps made of minir 0.019" aluminum. • Space straps a maximum of 96 Ill 80 inches o.c. for Wind Zone III. 1-1/2" wide x 26 ga galvanized steel or o.c. for Wind Zone II and a maximum TRIPLE -SECTION HOMES (WIND ZONE I ONLY) For triple -section homes where roof lines run parallel to each other on adjacent units (Figure 34), follow the instructions below to' complete the connections at the roof. Install fasteners through pre -installed sheathing For homes where sheathing is in place on both sides of the marriage line (Figure 33) install fasteners from the low side of the roof on an angle so as to penetrate roof beams on both sides of marriage line, using the fastener specifications and spacings indicated on Table 17. 1 1s 43 MAX a�oc —Une I I Plan Elevation TABLE 17. ROOF CONNECTION SPECIFICATIONS Fastener Spacing Type Size Wind Zone I Wind Zone 11 Wind Zone Ill Lag screw 5/16" x 6" 14inT - - Wood screw I #10 x 5, , gin.; STEP 8. CONNECT WALLS Once the home is secured along the marriage terior doorways, and marriage line partitions scribed below. END WALLS Install toed fasteners through sheathing Toe fasteners through sheathing from the exi (+/- 5 degrees) (Figure 35) according to the 1 quirements in Table 18. See (Figure 30) for line floor and roof, secure end walls, in - .cording to the appropriate method de - at an approximately 45 degree angle ier specifications and spacing re- lered fastener pattern. from sinking into the holes over time. When to use optional metal straps. If a ridge vent will be installed, use straps in- stead of a continuous cap. i ' // Wind Zone II and III Triple Section Homes. See In- stallation Addendum in- cluded with manual. Figure 33. Triple -section roof connection (Wind Zone / On- ly) Figure 34. Triple -section home June 1, 2015 KNOWAVARN • 40 Manu acturer's Installation Manual - June 2015 1MAN11,1001a11AUY11.1- Gasket Wall Studs Exterior Siding or Exterior Siding Q Underlayment TABLE 18. END WALL FASTENERS TIONS Wood screw #8 x 3" 32in. o.c. Nail0.131: x 3%" 1 32in. o.c. MARRIAGE WALL COLUMNS Check inside the home along the mate line for a label that identifies any support col- umn(s) requiring special attachment. If found, make connections inside the home to fasten support columns to the structure of the other section (Figure 36). By installing fasteners according to the specifications and spacing requirements in Table 19. Toe screw or through -screw to maintain 11/2 inch screw penetration. WALL #8 X 4" SCREWS OR EQUIVALENT FASTENERS AT 16" O.C. — TYPICAL r WALL WALL WALL I TABLE 19. MARRIAGE WALL CONNECTION. SPECIFICATIONS Fastener type Size Wood screw #8 x 4" 16 in. o.c. Figure 35. End wall connec- tion toed through sheathing Figure 36. Marriage line col- umn connections PHILLIP J. oredg�onal E�9tic0 June 1, 2015 e MA..I. U......,.,.M 1- Manufacturer's Installation Manual - June 2015 41 (WIND ZONE I ONLY) After the main unit has been set on its four following procedure: 1. Position and block the tag. Posi possible at its intended location. l ing and install pier supports accor HOME SECTION (p. 28). Determi designed to line up flush or are of accordingly. 2. Level the unit. Using a water lev( elevation of all -points along the lo, than 3/8 inches from the desired t inches overall. 3. Connect floors. If the floor of the the floors together as described it the floors are offset, use the conn the continuous 1 '/2' x 1 Y2" x 1/8" x 3" lag screws or #8 x 3" wood s( to that used for the connection of 4. Connect walls. Secure the tag ur 4" toe screws at 12 inches o.c. (s( are complete, finish the siding ins' AC GARAGES , install all tag units according to the on the tag unit as close to the main unit as (e a hitch jack to obtain approximate level- ing to Set the Home, STEP 2. POSITION e whether the tag and main unit floors are et by a step and adjust the tag pier heights (p.33), verify that the piers are level. The :r flange of the I-beam should be no more ight and should not deviate more than 3/4 .ag unit is level with main unit floor, connect STEP 6. CONNECT FLOORS (p. 37). If action detail shown in Figure 37, fastening Ingle iron to the tag unit with minimum 5/16" -ews. Match fastener spacing and quantity ie angle iron to the main unit. it walls to the main unit sidewall using #8 x e Figure 38). Once the wall connections 5. Connect roofs. Connect the tag unit roof to the main unit roof using #10 x 5" screws, toe screwed at each main unit vertical structural member (stud or truss) location. See Figure 39 for flush roof connections and Figure 40 for roof connections with an offset greater than two inches. Roof connections with an offset less than two inches do not require screws. snNWaund.eaymd Rutoa FWft (OrAdoiaonN UWor smnal 'UMn .Myment) Flat0—id Mete) ��, Faacu RDor Oedit Tng Urn M.Rn Wi Main Unit swna Step Flmitina 10 (OrT.CoursolRw/0eddn 0! rA sim"M Tea UNI 1 . 'A Piers under tag units. Some tag units have spe- cial piering needs due to the roof and/or floor con- struction. These are de- tailed in Figure 8. Note that tag unit end walls are typi- cally load bearing rather than side walls. V&10zz Wind Zone II or III Tag Units. See installation ad- dendum included with manual. Figure 37. (Left) Tag unit offset floor connection Figure 38. (Right) Tag unit wall connection Figure 39. (Left) Tag unit flush roof connection Figure 40. (Right) Tag unit offset roof connection • 42 Manufacturer's Installation Manual - June 2015 MANUFACTURED.EAVTIEULIT- -r r-W kr STEP 10. REMOVE TEMPORARY ITEMS Once the home is properly supported and the marriage line connections are completed, remove the temporary ridge beam supports and wall/ceiling plates used to brace the ridge beam during shipment. Take care not to damage the ceiling. Remove and store or properly dispose of or recycle the hitch, axles, and wheels. These items are the property of the homeowner unless oter contractual arrangements have been made. STEP 11. FASTEN HOME TO FOUNDATION Fasten the home to the foundation (typically to the sill plate) according to the fastening schedule provided by the LAHJ or approved foundation drawings. STEP 12. BACKFILL AND GRADE Backfill against the foundation wall to the height of the waterproofing, taking care to not damage the drainage system. j Grade the site as described in Prepare the Site, (STEP 3. CLEAR AND GRADE THE SITE (p.11). STEP 13. BUILD STAIRS Construct the basement stairs in compliance with the local building code. Take care that adequate headroom is maintained under beams and that there is sufficient landing space at the bottom of the stairs. j When to backfill. Backfill against basement walls on- ly after the home is con- nected to the foundation or the basement walls may deflect inward or collapse. Cutting the chassis. Do not cut, notch, bend, or alter in any manner beams, cross - members, and other parts of the steel chassis. MA .1ACiU BPA11T1f,,,,Y- Manufacturer's Installation Manual - June 2015 43 Complete Roof and Exterior Walls This chapter covers closing up and weatherproofing the home by completing the roofing and siding. STEP 1. COMPLETE ROOF (p:; 44) STEP 2. 'COMPLETE TAG UNIT `ROOF`(p.46) ,STEP 3. COMPLETE SIDE WALLS (p. 48) STEP 1. COMPLETE ROOF RIDGE CLOSEUP For multi -section homes, the first step in completing the exterior is sealing the roof along the ridge line (Figure 41). For homes with asphalt shingles, follow the procedure below. For homes with metal or other roofing materials, follow the instructions that come with the roofing materials or provided) as a supplement to this manual. Cap Shingle Underlayment Optional Metal (Wind Zone 2 & 3 Only) Factory Installed Shingles Factory Installed Shingles Underlayment Roof Deck I I 1. Install underlayment (when sheathing at the ridge is installed on site). Make sure the roof sheathing is already installed (see Complete Multi -Section Set, STEP 7. CONNECT ROOF, p.39). Install 15# felt or equivalent continuously along the length of the ridge, covering all exposed sheathing and overlapping sheathing joints by at least five inches on each side. Fasten using V x 1" x 16 ga galvanized staples. For Wind Zones II and III, also apply a six inch wide strip of roofing cement along each side of ridge under the underlayment. 2. Install shingles. If shingles have been left off at the ridge line for site installa- tion, install them now using 1" x 1" x 16 ga galvanized staples or 12ga 1-1/4" long, 3/8" diameter head roof nails. For Wind Zone I, fasten at 5/8 inch above each tab cutout slot and one at each end of the shingle one inch in from the edge (four fasteners for a three -tab shingle) (Figure 42). For Wind Zones II and III, use two fasteners 518 inch above and on either side of the tab slots and one at each end of the shingle one inch in from the edge (six fasteners for a three -tab shingle). Do not fasten through the shingle tar line. Figure 41. Shingle installa- tion at ridge ' /, Weatherproofing. It is vitally important to close up the home quickly to protect the interior from damage due to inclement weather. Removing shipping protec- tion. Remove shipping pro- tection from the roof prior to completing roofing. 44 Manufacturer's Installation Manual - June 2015 1�-36"Shingle � 1�36°Shingle x x 12.x x x- xx x 12" J x Fastener Locations 1 3. Install shingle cap. Starting at the opposite end of the home from the prevail- ing wind, install ridge cap shingles provided by the manufacturer or use 12" x 12" shingles (36" shingles cut into three equal pieces) (Figure 43). Install us- ing 1" x 1" x 16 ga galvanized staples or 112 ga 1-1/4" long, 3/8" diameter head roofing nails spaced 5-5/8 inches from boitom edge and 1/2 inch to 1-1/2 inches in from both edges. Cover the exposed fasteners with tar or cement. Cut shingle into three pieces as shown by dotted line Fasten ridge rail together with fasteners staggered from section to section for the entire length (Screws must be located at ridge blockir Rid Ridge blockin HINGE ROOF CLOSE-UP For homes with hinged roofs, complete roofing underlayment and shingles along the hinge line (Figure 45) as follows: 1. Install underlayment. Attach the underlayment to the roof deck with a mini- mum of six-inch wide strip of cement. If necessary, trim the underlayment to allow the lowest shingle above the hinge of the roof to seal to the topmost shingle on the lower portion of the roof. 2. Install shingles. Install missing shingles according to the shingle manufactur- er's instructions. Figure 42. Shingle fastener locations for Wind Zone 1 (left) and Wind Zones 11 and 111(right). Figure 43. Shingle cut into thirds Installing a continuous ridge vent. If a ridge vent is to be installed, follow the ridge vent manufacturer's in- structions provided with the material and connect roof with same toed fastener as in Step 7 Connect Roof (p. 39) but fasteners shall be grouped at ridge block loca- tions (Figure 44). Figure 44. Continuous ridge vent MANUFACTUR60 BEAUTIFULLY' Manufacturer's Installation Manual - June 2015 I 45 Site Install Shingles In Hinged Area Pe The Instructions On The Shingle Package Shipped The With The Home After Roof Is In The Raised Position, Trim The Shingle Underlayment To AOow The Shingle Of The Upper Roof Section To Seal Onto The Last Shingle Of The Lower Roof Section. J Underlayment r .� i � I uPQot I/ �kspdo, 1,01116 Asphalt Roofing Cement Between Layers of Underlayment Minumum 6" Wide COMPLETE TRIPLE -SECTION ROOFS Complete roofing along triple -section home marriage lines according to one of the fol- lowing methods based on the constructionlof the home. Pre -Installed Sheathing 1. Install underlayment. First fold I roof. Then fold down the center s layment of the outer section roof. the underlayment of the outer section n roof underlayment on top of the under- 2. Install shingles. Install missing row(s) of shingles, securing them per the shingle manufacturer's installation instructions (refer to the shingle wrapper). Center Section I outer Factory -Installed Shingles __I / Shingles Factory -Installed Shingles 12 -� 4.3 Metal (Optional) I Fastener STEP 2. COMPLETE TAG UNIT ROOF If the home has a tag unit, complete roofingifor this unit now. The process for complet- ing the roof is different for flush and offset roofs. Follow the instructions in the appropri- ate section below. I FLUSH ROOFS For flush roofs, complete roofing along the lows (see Figure 47): line and at the valley line as fol- Figure 45. Shingle installa- tion at hinge line Installing metal flashing. Install optional metal flashing over the roof decking before applying roofing cement. Fold back the underlayment and fas- ten 30 ga x 6" wide mini- mum galvanized metal with roofing nails or 16 ga x 1" crown staples of sufficient length to penetrate the roof sheathing. Space fasteners four inches o.c. or less near the edge of the metal. Overlap the metal by at least two inches at joints. Figure 46. Triple -section roof connection 46 Man facturer's Installation Manual - June 2015 Fastener Tag Unit Marriage line Shingle Underlayment Instal ointFlashing Rat Over'Jont Method 1: Install metal flashing (minimum between the main roof dormer and tag unit decks on both dormer and tag unit roofs wi one inch crown and long enough to fully pe maximum two inches o.c. near the edge of al by at least two inches. After flashing is ct manufacturer instructions and ridge cap/ve ROOF (p. 44). Method 2: Install two layers of roofing undi between the main roof dormer and tag unit layment a minimum of six inches on each s stall shingles per shingle manufacturer inst STEP 1. COMPLETE ROOF (p. 44). Valley line Una i ga x minimum 6" wide) over the joint of. Secure the flashing to the roof roofing nails or 16 ga staples with a itrate the roof decks. Space fasteners e flashing. Overlap seams in the met- lplete, install shingles per shingle according to STEP 1. COMPLETE /ment or equivalent over the joint f lapping the factory installed under - and fully cemented at the laps. In- lons and ridge cap/vent according to I Along the bottom of the valley, shingles and onel or more layers of roll roofing may need to be installed. If fastened to the roof at the factory, unroll the roofing, overlap the tag roof and trim the roofing to the roof edge. If shipped loose, install the roll roofing at the valley, lapping it under the factory installed roll roofing a minimum of 12 inches and fully cement the roofing at the lap. Complete shingles at the valley either by interweav- ing them or by trimming back approximately four inches from the valley line and fully cementing the exposed shingle edges. OFFSET ROOFS If there is a gap between the main unit dormer overhang and the tag unit roof of less than two inches, fold up the main unit dormer fascia, slide the underlayment and flash- ing from the tag unit roof behind the fascia, and bend the fascia back down and secure into sub -fascia with metal screws (Figure 48). 1 Figure 47. Tag unit flush roof connection M���r�<,eaEoeE.e.re�,.- Manufacturer's Installation Manual - June 2015 I 47 Unit Main If the gap between the main unit dormer ov more, bend up the inside corner trim at the fold up the factory installed flashing on the down, and secure into dormer wall with me Not Main Ddp Edgo Fasda Fadory-Installed -Step Fleshing a. Over Roiled \ Tag Unh C Carved Up Into Roof Sub.Fasda Min. 3' rang and the tag unit roof is two inches or rmer overhang and main unit sidewall, unit roof, fold the inside corner trim back screws (Figure 49). Roof Decking J Main Unit Step Flashing (Or Top Course-—/ Roof Of Vinyl Siding) Fastener STEP 3. COMPLETE SIDE W Siding necessary to complete the exterior hi siding manufacturer's instructions (found on to this manual) and to complete the exterior Shingles Tag Unit LLS been provided with the home. Follow the with the packaging or as an addendum lino as follows: 1. Remove shipping protection. Remove temporary shipping protection from walls. 2. Complete crossovers. Complete aIny crossover connections in the walls, in- cluding: electrical, stereo speaker, doorbell, telephone, and intercom wires. 3. Install siding. Fasten siding only atIlstud locations, avoiding electrical wires that are present in the walls. 4. Install close-up of strips. If siding has been installed on the end walls at the factory, fasten close-up strips securely along both edges and seal the edges with a waterproof sealant. 5. Install trim. Install any matching triT required to complete the installation. 6. Seal penetrations. With a waterproof sealant, seal any penetrations in the siding that may have been caused by temporary shipping protection. Figure 48. Tag unit roofing connection with less than two inch height difference Figure 49. Tag unit offset roof connection V&*IrZZA Covering the HUD label. Do not cover the HUD label on the exterior of the home. Removing shipping protec- tion. Remove temporary shipping protection (Poly- ethylene sheathing) from walls before installing sid- ing or serious moisture damage may result. Also, check weather resistive barrier (house wrap) for damage and repair if nec- essary. 48 Manufacturer's Installation Manual - June 2015 1 CTUR EAU • i I Connect Crossovers This chapter covers crossover connections between n units of multi -section homes, including ducts and electrical, water, waste, gas, telephone, and cable TV connections.) STEP 1. CONNECT DUCTS (p. 49) STEP 2. CONNECT ELECTRICAL CROSSOVERS (p. 51) STEP 3. INSTALL ELECTRICAL BONDING (p. 54) STEP 4. - CONNECT WATER LINES (p. 54) STEP 5. CONNECT DRAIN, WASTE, AND VENT LINES (p. 55) STEP 6 CONNECT GAS LINES (p. 57) STEP 7. CONNECT TELEPHONE AND CABLE TV WIRING (p. 57) STEP 8. CONNECT HOT WATER BASEBOARD HEAT (p.57) STEP 1. CONNECT DUCTS There are three main types of duct crossover c duct, follow the installation steps on the page i • Under the floor (p. 49). • In the roof cavity (p. 51). • In floor, through -the -rim joist (p. 51) To prevent air leakage, seal all ductwork conni or more of the following materials: • Galvanized metal straps in combinati • For rigid air ducts and connectors, ta, • For flexible air ducts and connectors, inections. Based on the location of the icated below: including duct collars using one with galvanized sheet metal screws. and mastics listed to UL 181A. :)e and mastics listed to UL 181 B. UNDER FLOOR FLEXIBLE CROSSOVER DUCT When heating or cooling equipment is installed lin the home, the flexible crossover duct is provided by the manufacturer. In all cases the crossover duct must be listed for exte- rior use. There are four common configurations of uncle j floor crossover ducts depending on the number of home sections and the furnace/air handler location. See Table 20 to locate the appropriate figure. I TABLE 20. UNDER FLOOR DUCT RATIONS Furnace over trunk duct See Figure 50 See Figure 52 Furnace offset from trunk duct ij See Figure 51 See Figure 53 / A Qualified personnel. Use on- ly qualified personnel to make crossover connections. Consult the LAHJ for licens- ing or any additional crosso- ver connection requirements. Access for service. Whenev- er possible maintain access to connection areas for fu- ture maintenance. Make tight connections. Permanent, durable, and tight crossover duct connec- tions are critical to the proper performance of the home. Leaky ducts can result in se- vere moisture problems in the home, discomfort from rooms not receiving the proper amount of condi- tioned air, and high utility bills from wasted heating and/or cooling energy. I Manufacturer's Installation Manual - June 2015 49 Furnace / Air A Section I'I Handler B Section IM Floor Heat Dud Tap -Out Collar Flex Dud Field -Installed Flex Support Straps Duct I (Furnace (Air A Section LU IHandler B Section I I Floor i Heat Du Tap -Out Collar Field -Installed Flex Dud Flex Duct Support Straps "W-Box Under Furnace Furnace I Air A Section LU Handler B Section C Section Floor I Heat Du Tap-0ut Collar Field -Installed Flex Dud " I -Box Under Furnace Flex Dud Support Straps A Section Heat Duct Tap -Out Collar Feldanstalled Flex Duct 'V"-Box Under Furnace Furnace / Air Handler For under floor flexible crossover ducts follow 1. Locate collars. Locate the metal crr the main trunk duct (or furnace) and ping protection. 2. Install inner duct. Slide the crossoN lar/V-box as far as it will go. Tempor duct tape. Install a large nylon zip-ti( around the crossover collar/V-box. F and collar/V-box (alternately, the ma prior to sliding the duct inner liner m 3. Connect duct insulation. Bring the above the home's bottom board into against the base of the trunk duct/V- 4. Pull duct wrap. Pull the crossover c tion and temporarily secure it to the 5. Install zip -tie. Feel for the nylon zip Place another nylon zip -tie just undE crossover duct insulation and outer 1 6. Trim duct. Trim the crossover duct, be straight with no kinks or unneces 7. Connect other end. Follow the sarr nect the opposite end of the crossm 8. Seal joints. Seal the joints between with foam or mastic. Section C Section Flex Duct Support Straps the steps below: ssover collars (or V-box) connected to it the home and remove temporary ship- ;r duct inner liner over the crossover col- rily fasten the inner liner in place with over the inner liner just above the "ridge" )ply mastic completely over inner liner ;tic may be applied to the collar/V-box :r it).- iuct insulation up over the zip -tie and he floor cavity. Temporarily duct tape it ct outer wrap over the top of the insula- ink duct[V-box with duct tape. e that was installed over the inner liner. the first one to permanently secure the length such that the installed duct will ry bends. procedure (steps 1 through 5) to con- duct and any other crossover ducts. e bottom board and the crossover duct Figure 50. Furnace over trunk duct two home sec- tions Figure 51. Furnace offset from trunk duct, two home sections Figure 52. Furnace over trunk duct, three home sec- tions Figure 53. Furnace offset from trunk duct, three home sections Securing the crossover. Between Step 5 and Step 6, drill three or more 1/16 inch holes an equal dis- tance around and just below the bottom edge of the nylon zip -tie. Install #12 pan head screws in these holes, through the flexible duct and into the metal crossover col- lar/V-box. The screw heads should be against the zip -tie. i , // Cover exposed metal. Com- pletely cover all exposed metal connectors with insula- tion. Apply sealants and tapes only to surfaces that are dry and free of dust, dirt and grease. 50 Manufall turer's Installation Manual - June 2015 Support duct. Support the crossover duct(s) above the ground using nylon or galvanized metal straps and saddles spaced every 48 inches o.c. or less. Choose straps at least 1/2 inch wider than the spacing of the metal spireals encasing the crossover duct. Install the straps so they cannot slip between sprials. Secure metal straps with galvanized screws. ROOF CAVITY CROSSOVER DUCT For ducts installed in the roof cavity, follow the s 1. Roof Access Panel: After units have t Fold back the roofing paper and unscre shown below. Replace access panel, c shingles and ridge cap. 2. Alternate to Roof Access Panel: The at set-up and the ducts are connected. careful not to crush the ducts. ROOFACCESSPANEL FASTEN TOALL FRAMING MEMBERS WRH Na X 2'WOOD SCREWSATB• O.C. MAX below: :n set, locate the roof access panel. panel, reach in and attach ducts as ar with roofing paper and finish the are located as close as possible are then moved together, being ROOF ACCESS PANEL I I I I ROOF ACCESS PANEL MIXER BOX I MDR BOX FLEX DUCTTO BE PULLED NVACCONNECTORBOX BANDING THROUGH MATING LINE OF HOME TO NVAC CONNECTOR BOX NVAC CONNECTOR BOX ATTACHEOTOCOLLARANO SANDEDATSET-UP OPTION R BNB I OPTION 2 -MDO=R BOX AWAY FROM IN THE FLOOR CROSSOVER DUCT Where one or more crossover ducts are built into the home's floor system, connect them at their openings that run through the rim joists. Through the rim joist 1. With a through -the -rim joist design, the duct in each floor section terminates at an opening in the marriage line rim joist. Fixed through -the -rim crossovers employing a marriage line gasket such as in Figure 27 were completed in Complete Multi -Section Set, STEP 41 REPAIR OR INSTALL MARRIAGE LINE GASKET (p. 36) and require no i dditional work here. I STEP 2. CONNECT ELECTRICAL CROSSOVERS Multi -section homes may have one or more electrical crossovers located in the wall(s) and/or floor(s) along the marriage line(s). JOINING WIRES Two types of connections may be present at these locations —snap connectors and junction boxes. Identify matching circuits if multiple circuits exist at a single crossover location. These will be coded for identification..6onnect snap connectors according to the connector manufacturer's installation instructions, including fastener requirements. Connect wires in junction boxes as follows (Figure 55): Pull wires. Pull circuit wires into the junction box, sliding them through a romex con- nector and secure snugly. (Figure 55) Do not'over-tighten. Avoid ground contact. in- stalled crossover ducts must not be in contact with the ground. Unobstructed airflow. Excess length, kinks and bends in the crossover duct will restrict air- flow and degrade the home's HVAC system performance. Figure 54. Duct crossover Located in the roof cavity. Use qualified electricians. All electrical work must be performed by a qualified electrician and comply with the 2005 NEC. Disconnect power. Turn off power to the home before making connections. MANDTACTBYLB BEAUTIFULLY' ManufI acturer's Installation Manual - June 2015 51 Strip wires. Remove the outer jacket that holds the circuit wires together providing a minimum of four inches of free wire in the box. Connect wires. Connect wires together matching like colors, using appropri- ately sized wire nuts. Use the ground wire to ground the junction box and/or cover plate(s), if metal. Junction boxes may contain single or multiple 15 or 20-amp circuits, or a single 240-volt appliance circuit. Replace cover. Reposition the junction box cover and secure using machine (not sheet metal) screws. ApprovedP or M3tal E Is npa N ox Used Single 15 or 20 AMP Crcuit FLOOR CROSSOVER When making electrical connection(s) in the scribed below: Method 1: Access panel 1. Access wires. Find the crossover if attached. If access panel openinc board to expose the wiring (Figure 2. Route wires. Pass the wires throe joist or if there is a single bumped-i der the rim joists. If holes or notche bumped -out access panel, drill ma; up the rim joists on each home sec the wire through the hole. Double 15 or 20 AMP Circuits , use one of the wiring options de- ;ation(s) and remove the access panel(s) are not provided, cut through bottom i predrilled holes or notches in the rim t access panel as in Figure 57, then un- have not been provided and there is no num one -inch diameter hole(s) half -way In, making sure the holes align and feed 3. Connect wires. Connect wires via a junction box or snap-connector(s) as de- scribed above. 4. Secure wires. Secure wires with staples to adjacent joists or studs within eight inches of junction box or snap2Iconnector(s). 5. Install smash plates. For notched perimeter joists, install steel wire protec- tors (smash plates). 6. Seal bottom board. Replace insulation and re -install access panels and/or seal the bottom board with tape specially made for that purpose (may be pro- vided). The access panel(s) may be temporarily installed near the crossover location or shipped loose with the home. Junction Box or Snap -Connector Through Joist Joists Are Notched, Steel Pmtectors May e Provided With the Flome nss Panel May Provded Proper use of GFCI circuits. Ensure Ground Fault Circuit Interrupted (GFCI) circuits are connected to the proper GFCI protected circuits from the power supply. Figure 55. Types ofjunction box wiring connections Appoved Conneclae and Lug Yetal Boxes Only) 240V Appliance Circuit i ' // Using snap connectors. Do not use oversized nails or drive nail heads into snap connectors. Some con- nectors are designed for one-time use only — a new connector must be used if they become separated. Protect cables. Cover all cables with conduit or other suitable weather -resistant and protective material. Figure 56. Electrical crosso- ver floor wires with flush ac- cess panels 52 Manufalcturer's Installation Manual - June 2015 MANYIACTYIIIO 0®AYTIl YIIV• Box orsnap Ibmector Method 2: Junction box with conduit 1. Access boxes. If junction boxes are n floor by cutting the bottom board or by i the junction box covers. 2. Connect wires. If wire is coiled inside flexible conduit and pass it under the ri) the connection as described above. If r vided ship -loose conduit with wire maki (Figure 58). 3. Cover boxes. Replace and secure cot Protective Cova Provided Patch Batlan Board.) exposed, access them inside the noving the access panel(s). Remove ,le junction box, insert it into provided joists to the opposing box and make coiled wire is provided, install pro- s connections in both boxes on junction boxes. 4. Seal floor. Replace any displaced insulation and replace access panel or seal the bottom board with tape specially made for that purpose (may be pro- vided). Variation to Method 2: A junction box other side containing conduit behind an side and make one connection in the ju Junction Box (May Be Under orAlongside Floor Joist be installed only on one side with the ss panel. Bring the conduit to other i box. Wire For Croasowr ay Be Coiled Inside Junction Box -Flexible Conduit WALL CROSSOVERS Connect electrical, phone, cable television, and stereo speaker wires in marriage walls and/or partition and end walls. If access panels into the marriage walls are not provided, then the connection should. have been made prior to bringing the home sections together. If access panels are provided in marriage, end or partition walls, remove the panels, join the'wires as de- scribed above using the provided snap -connector, junction box, or at a receptacle, and re -attach the access panel (Figure 59 for marriage walls and Figure 60 for partitions and end walls). Figure 57. Floor electrical crossover wires with bumped -out access panel Figure 58. Under the rim joist electrical crossover connection with conduit OF F V' A O Z Avoid damaging crossover wires. Carefully fold mar- riage wall crossover wires so they stay within a single bay and are not sand- wiched between studs when the sections are pulled together. WOMAVITAIN MnNurecro.ea.e. Manufacturer's Installation Manual - June 2015 53 Connect Wires at Junction Box, Receptacle, or Snap -Connector Optional Access - Panel Endwall Access to Junction Side'A' I I FBox-Inside Home — — — — — I I I j� Factory -Installed —Win: Protectors STEP 3. INSTALL ELECTRIC To ensure all metal parts are effectively grog, gether as follows (Figure 61): 1. Find lugs. Determine if solderless rear frame outriggers or headers. 2. Attach wire. If lugs are provided, L copper wire) from one side of the he the opposing side using the provide the set screw firmly on the wire and Rear Outrigger at , L#8 Min. Copl Marriage Line Ground Wire Endwall Side'B' BONDING i, electrically bond all chasses to - lugs are provided on the front or ;oil the bonding wire (#8 minimum bare to and connect it to the lug provided on paint penetrating star washer, tighten :peat for any additional home sections. Marriage Line Soldedess Lug Each Half of Home 3. Attach strap. If ground lugs and copper wire are not provided, attach the pro- vided four -inch bonding strap to eacl pair of adjacent chasses with two #8 x 3/4" self -tapping metal screws (one screw each side). STEP 4. CONNECT WATER LINES Connect water lines inside the floor through acicess panels or below the bottom board as follows: WATER LINES ACCESSED THROUGH PANELS 1. Remove panels. Remove access panels from each home section. 2. Remove caps. Remove shipping caps from ends of water lines. 3. Pull lines. Pull water lines through holes in rim joist. If holes are not provided, drill round holes in the center of the rim joist, with a maximum diameter of one third the rim joist depth (Figure 62). Figure 59. Inside marriage wall crossover connection Figure 60. Inside partition or end wall electrical crossover connection . Figure 61. Electrical bonding of multi -section homes V&*Ozrzj Applying cement. Follow ce- ment manufacturers instruc- tions with respect to applica- tion and drying time. Allow cement to fully cure before filling pipes with water. 54 ManufaFturer's Installation Manual - June 2015 4. Connect pipes. Connect threaded water lines using provided connector fit- tings (do not use lubricants or sealants). Connect non -threaded water lines using provided fittings and cement, inserting pipe to full depth of each fitting (a short connector pipe may be provided to bridge the gap between sections). 5. Test. Test connections for leaks. 6. Seal floor. Securely replace insulation and access panels. WATER LINES DROPPED BELOW BOTTOM E 1. Remove caps. Remove protective ship make sure pipe ends are clean and smt 2. Connect pipes. Connect threaded watt connector line (if provided) and connecl sealants). Connect non -threaded water provided, inserting pipe to full depth of E 3. Test. Test connections for leaks. g caps from ends of pipes and lines using flexible pipe or a rigid fittings (do not use lubricants or les, pipe, and elbows with cement ch fitting (Figure 63). 4. Protect pipes. Wrap water lines with insulation and bottom board shipped loose with home or otherwise protect to prevent freezing. Tape bottom board using tape specially made for that purpose (may be provided) and staple with 7/16" x 1/2" staples at four inches o.c. around bottom board using a divergent (stitch) stapler or equivalent. If heat tape Is used it must be listed for manufac- tured home use and be installed in compliance with manufacturer instructions. !� Marriage Line Supply Side (Side With Water Heater) j I Receiving Side Direction of Flow >- I I /Gasket Cap to Be Protective Cap Removed on Ste TJ I i Water Line and Elbows Shipped Loose to be Added on Site STEP 5. CONNECT DRAIN, WASTE, AND VENT LINES Complete portions of the drain, waste, and vent: (DWV) system that are below the floor as follows: 1. Remove caps. Remove shipping covers from pipes extending through the bottom board; inspect pipes and fittings and clean them of dirt, obstructions, and burrs. 2. Assemble pipes. Using the drain schematic drawing provided with the home, begin assembling the DWV system starting at the location farthest from the sewer/septic connection and working towards the outlet, fastening the pipe with cement or adjustable screw -clamp connectors, if provided (Figure 64). As the system is assembled, support the piping with temporary blocking. Un- less otherwise noted on the schematic diagram, provide a minimum 1/4 inch per foot slope towards the sewer/septic using a plumber's level. Where a slope of 1/4 inch per foot cannot be maintained, use a minimum slope of 1/8 inch per foot and install of a full-size clean -out at the uppermost point of the run (Figure 65). Figure 62. Waterline cross- over with access panels 1 Choosing cement type. Use the proper cement for water lines as it may differ from the cement used for the DWV system. Figure 63. Waterline cross- over through bottom board i i // Providing required clearances. Provide the drain outlet with a minimum clearance of three inches in any direction from all parts of the structure or any appurtenances and with not less than 18 inches unrestrict- ed clearance directly in front of the drain outlet. Provide any cleanouts with a minimum clearance of 12 inches directly in front of its opening. MANUFACTURED BEAUTIFULLY' Manufacturer's Installation Manual - June 2015 55 Cement Coupling (Provided) to End of Pipes Drain Pipe Fasten Coupling (Provided) b Piping With Clamps Dust Cover Direction of Flow and Slope Q Double EIS ong Turn 81 To Sewer/Septic 3. Test. Conduct a two-part leakage I follows: • Part 1. With all fixtures conne( fill the system with water to tht ture. Release all trapped air, r tures, and allow the system to Drain the system. If leaks are • Part 2. Plug all fixtures, sinks, lease the water in all fixtures sible drain piping flow. As watt found, repair and retest. 4. Connect to outlet. Connect the m up, using an approved elastomer c Examples of Connection Pipe and Fittings (Not Supplied by the Manufacturer) 5. Install supports. Install permanent feet o.c. or less (see Figure 64, Fig Support Straps Pipe Supports Direction of Flow and Slope Pipe Figure 64. Drain crossover connection Figure 65. DWV system Dran rain Dropout Dust_ Cover Dropout vEr 3lo ust Cover - --Long Turn Ell !Z.ng Long Turn Tee Wye (SubsituteforObow lean -Out Plug Tum FJI and Provide a Full Size Clean Out When Required) on the completed drainage system as ed, and all tub and shower drains plugged, rim of the toilet bowl through a higher fix - place tub and shower plugs, backfill fix- itand at least 15 minutes. Check for leaks. )und, repair and retest. howers, and tubs and fill with water. Re- nultaneously to obtain the maximum pos- is draining, check for leaks. If any are drain line to the site sewer/septic hook- iling (Figure 66). Support Strap at a Maximum of 4 Feet on Center Cap and Chain Approved Site Sewer Hook Up n line supports at a distance of four 65, Figure 66, and Figure 67). v&rlrzzA Choosing glues. Use only solvents and glues compat- ible with the pipe (ABS or PVC). Follow manufactur- er's instructions. Figure 66. DWV connection to sewer/septic 56 Manufacturer's Installation Manual - June 2015 (2) 0.131"Diax3 e" Nails Min. 2x3 Lumber 0.131" Diax3 k Nail — Galy. or Alum. Strip — Min. 1x3Lumber — �I/�' (2) 0.131"Diax3 a 1 Nalls Into Floor Joist 1 (2) 'is x 2" x 16GA Staples or(2) 0.131" Dia x 3 a Nails Each End (2) Staples or Screws Each Side Galy. or AJ um Strip ,Min. 2x3 Lumber -Drainpipe — 6. Insulate. Replace any insulation and make of the DWV system are well insulated to pr( STEP 6. CONNECT GAS LINES The gas crossover connection may use quick disc ors. Find the connection location below the floor connectors (they may be shipped loose if not pre! For quick disconnect fittings (Figure 68), remove hand, pull back on the quick disconnect device, s for and release it to complete the connection. all potentially exposed portions against freezing. nnect fittings or threaded connect - the marriage line and gather the ant under the home). ny dust caps and then with one ip it over the quick disconnect adap- For threaded connectors (Figure 69), remove the black cap and nipple (or any other plugs, such as a black iron plug) from both the supply and receiving sides and screw the connector onto the supply and return pipes as necessary. Check for leaks before connecting to gas CONNECT GAS SERVICE, p. 76). Quids -Disconnect Male Fitting Flex it Factory Installed Quids -Disconnect Female Fitting Installed on Inlet Side Male Cap Female Cap (see Connect Utilities, STEP 3. Shut-OffValve Installed on Inlet Side Flex Connector _ [—Factory Installed Female Cap Or Male Cap Direction of Gas Flow I Direction of Gas Flow STEP 7. CONNECT TELEPHONE AND CABLE TV WIRING Install telephone and cable television wiring in accordance with the requirements of the LAHJ, the NEC, and NFPA No.70-2005. When!making crossover connections or in- stalling telephone or cable television wires, do not run them in the same raceway as, or in close proximity to, high voltage electrical conductors or cables. Wires should only be installed by trained professionals. STEP 8. CONNECT HOT WATER BASEBOARD HEAT Install all crossover connections for hot water baseboard heat with copper sweat fit- tings, copper unions or other approved metal connections. Figure 67. DWV pipe sup- port options I // Protect pipes from freezing. If the home is to be left un- heated in cold weather, pour antifreeze solution into all drain traps, including sinks, tubs, and toilets. Be sure that the antifreeze is safe for the fixtures and P-traps. Installing quick disconnect fittings. Do not use tools, lubricants, or sealants with quick disconnect fittings. Gas test precautions. Do not connect to gas service until tests described in Connect Utilities have been successfully completed. Figure 68. (Left) Gas cross- over with quick disconnect fittings Figure 69. (Right) Gas crossover with threaded connectors PF V' // Installing wiring. When in- stalling telephone and ca- ble television wires, do not damage electrical wires, plumbing lines, or ducts. Serious personal injury or death could result from damage to electrical wires. MOM. MUTuvur- Manufacturer's Installation Manual - June 2015 57 i Complete the Interior This chapter covers the completion of the home's interior finishes including finishing walls, ceilings, flooring, trim, and mis- cellaneous items. STEP 1., ALIGN MARRIAGE WALLS (p. 58) 'STEP 2. FINISH GYPSUM BOARD (p. 58) STEP 3 COMPLETE WALL AND CEILING FINISHES p, 59 V. STEP 4. `COMPLETE CARPET '(p. 59) ,.'STEP 5. COMPLETE TRIM (p. 59) ; STEP 6. INSTALLSHIP LOOSE ITEMS (p. 59) STEP 1. ALIGN MARRIAGE WALLS Align and secure walls at marriage line openings as follows: 1. Align walls. Align walls and clamp in place. 2. Fasten walls. Secure clamped walls together with metal straps or long screws so they do not move when the clamps are removed. Insert wood wedges in gaps between walls, and glue and screw to create a tight connection. 3. Fill gaps. Fill any remaining gaps with wood or sheathing material. STEP 2. FINISH GYPSUM BOARD Finish all unfinished gypsum board walls and{ceilings as follows: 1. Install panels. Install ship loose gypsum panels using a 1/4 inch diameter bead of adhesive on all framing members and minimum 1-1/2 inch long dry- wall screws, nails, or staples at six inches o.c. along panel edges and 12 inches o.c. in the field into framing members. 2. Mud seams. Mud and tape all seams and corners, filling all fastener depres- sions. Follow mud manufacturer's directions. 3. Paint. When the final coat of mud is dry, prime and paint all unfinished gyp- sum board to match existing paint color and finish texture. 58 Manufa1Lurer's Installation Manual - June 2015 i ' // Fastening gypsum. When attaching gypsum board, depress, but do not break the paper face with the fas- tener. Breaking the paper will weaken the connection. Using alternative materials. Obtain the home manufac- turer's approval before us- ing interior finish materials other than those provided with the home. STEP 3. COMPLETE WALL AND CEILING FINISHES Install interior ship loose wall and/or ceiling panels using a 1/4 inch diameter bead of, polyvinyl acetate (PVA) adhesive on all framing members and fasten with minimum 1- 1/2 inch long staples or nails at six inches o.c. along panel edges and 12 inches o.c. in the field into framing members. STEP 4. COMPLETE CARPET Install and seam ship loose or rolled carpet as folli 1. Prepare floor. Clean the floor of all dirt aq'd debris and smooth the floor deck at the marriage line seams as necessary to ensure a level and smooth sur- face. 2. Lay pad. Lay down the carpet pad, if provided 3. Stretch carpet. Ensuring all carpet "grainj' runs in the same direction, fit and secure the carpet using a power carpet stFetcher. Stretch the carpet up to the seam and tack it down temporarily until the carpet is seamed. 4. Butter carpet. "Butter" with carpet adhesive the edges of the carpet along the seam. I 5. Seam carpet. Place heat bond tape u the carpet and apply heat from a sear ing the carpet into the glue. 6. Keep scraps. Retain reasonable size flooring during move -in. the seam with the glue side next to iron to the top of the seam, press - scraps to protect carpet and STEP 5. COMPLETE TRIM Using fine gauge wire staples or pin nails, install ship loose molding and wainscot pan- eling to finish trimming out ceilings, marriage line walls, front and rear end walls, and passageway doors where necessary. STEP 6. INSTALL SHIP LOOSE ITEMS Remove all strapping, blocking, and packaging f Iom appliances, windows, and doors. Install any drapes, mini -blinds, mirrors, door stops, closet shelves, and hardware per the product manufacturer's installation instructions. i ' /, Installing carpet. Only ex- perienced carpet installers should install carpet. Fail- ure to follow the carpet manufacturer's directions may void the carpet war- ranty. Stagger seams. Stagger all seams. For ex- ample, locate the carpet pad seam three inches to left of marriage line and the carpet seam three inches to right of marriage line. • M N.,—UoEoManufacturer's Installation Manual - June 2015 59 Install Stabilizing Systems This chapter covers the design and installation of the stabilizing system which secures the home against lateral and up- ward forces caused by wind. The system�covered here uses earth (or ground) anchors and steel straps connected to the home's longitudinal steel beams and/or exterior walls. Stabilizer plates shall be used to prevent the anchor head from moving laterally in the ground. An anchor, strap, and stabilizer plate together are referred to as a tie -down. Anchors can also be mounted in concrete footings when there is enough concrete mass (weight) to resist the lateral and upward forces. This type of system is not�covered in this manual. STEP 1. DETERMINE ANCHOR LOCATIONS (p. 60) STEP 2. DETERMINE TIE -DOWN CONFIGURATION (p. 65) STEP 3. SELECT ANCHORS (p. 66) STEP 4. INSTALL ANCHORS (p. 66) STEP 5. INSTALL -STRAPS (p. STEP 6. 17) TIGHTEN AND ADJUST STRAPS (p. 70) STEP 1. DETERMINE ANCHOR LOCATIONS Create a sketch of the home plan showing tine exterior walls, marriage line(s) (if any) and frame I -beams (this will be similar to the base sketch created in Install Footings, page 15). See Table 21 for a list of anchor locations, types, and where they are required. Pages where the requirements are provided are noted in the last column. As each anchor location is determined, mark it on the sketch, noting important dimen- sions such as spacing between anchors. Men complete, this will be the home's tie - down plan (Figure 70 and Figure 71). TABLE 21. ANCHOR LOCATION Frame Vertical ;( , Frame Vertical Frame Vertical j Vertical • Same as Single fl 'Section Connect any factory -installed sidewall tie -down zone in which the home is placed. Yes 61 Yes y 65' Yes 65 No 65 NA 65 NA 65 At Vertical Straps 65 65 to a ground anchor regardless of the wind Figure 70 and Figure 71 illustrate typical anchor locations for a double -section home in Wind Zone I and Wind Zones II and III respectively, i i ' // Need for a stabilizing system. The manufac- tured home must be se- cured against the wind by the use of an anchor assembly or an alterna- tive foundation system. Where site or other conditions prohibit the use of the manufactur- er's instructions, a reg- istered engineer or reg- istered architect must design the stabilizing system. Flood and seismic forces. The stabilizing system re- quirements in this chapter do not consider flood or seismic loads and are not intended for use in flood or seismic hazard areas. In those areas retain a regis- tered engineer or registered architect to design the sta- bilizing system. 60 Manufacturer's Installation Manual - June 2015 Sidewall Frame Tie -Down --I --I-Beam End Wall I - - Tie -Downs Marriage ---------------------------------ter-- Line - -o-- ------------- ---------- -----� - K Anchor Head IIStrap Vertical Tie- j &.*—Down I Standard PierArea Ceo 12 — ---- ---- ---- ---I — ---- - Longitudinal Anchors ---(3a---------------------- ------- -- marriageLine ---c;a---- --- ----- ----- - I-------�-- -Beam Lateral came W Tie -Dorm ' High Pier Area I StandaM PierArea Sidewrall . ierdcal Lateral Frame Tie -Downs Tie -Down I to Far Beam SIDEWALL FRAME ANCHORS Use Table 22, Table 23 and Table 24 to determine the spacing between anchors for Wind Zones I, Il, and III, respectively. Spacing requirements will vary depending on the type of home (single or multi -section), the slope 'of the roof, the width of the floor for each section, the sidewall height, I-beam spacing, and the height from the ground to the strap attachment point. Determine the values for the home. Using the table for the appropriate wind zone, determine the column and row that corresponds to the charac- teristics of the home. The value on the tables is ithe maximum distance between an- chors. Keep in mind that sidewall frame tie -downs must be located no more than two feet from each end wall and no closer than fourlfeet to another tie -down.. I Figure 70. Typical anchor locations for a double -section home in Wind Zone / Figure 71. Typical anchor locations for a double -section home in Wind Zones 11 or 1/1 Maximum spacing require- ments. The LAHJ may have anchor spacing requirements that supersede the values pro- vided in this manual. Manufacturer's Installation Manual - June 2015 61 TABLE 22. WIND ZONE I SIDEWALL (FRAME ANCHOR MAXIMUM SPACING (MINIMUM ANCHOR SPACING 4'-0" ) 1 9'-09" .10-11" 9"-09" `13'-05" „ v .�. ^a3_____'-A565 '10--03" t f '1t-08": � `1" �^ '13'-05�V- •10,-10" 12'-01" '13'-03" '13'-05" 11 . 04 d 12 04" ° •-12 05' •'12 09 ' *~9'-07" 8'-10" "12'-01" 12 Wide �,12 01" '9'-06" •10,-08" '11'-11" •12'-01" "10 ¢ 10 11� 11 02 , 1106" - 8' - 00" ' 8'- 06" 8' - 00" ' 10, - 09" 7 10" - �f .,rn ' 9 02". ~� • 10 07M ... 10 09 „ ` 8' - 05" ' 9' - 07" ' 10, - 081.. 10 - 091, .. 8 OF ` 9_ 10 t 10 0i 10 -05" A 11 -07"._ 9'-10" ,.11 -07� 9-10- 9 9 - 04"' 13 05 ` • 11' - O6" " 13' - 05" ' 13' - 05" 1'-- 10" * 12 --09" 13 01 • 10'- 05" p 8'- IT 10'- 05" 8'- 10" 8.,_04" *9'-'06" I 8'- 04 •�( 12'-01 I 'Wide 8 11 10 01" 12 01 '12 01 -10-06. 9' - 06" 8' - 00" 9' - 06" 8'- 00" ^ 8' - 05" s�� " 7 07" 11 00 7-10" '"8'-11" '11 00 11 00 • 8 03°a w ` 9 03" ,10 05 ~�� ` 10 OB - 12'-10" _ 11'-09" 12'-10" 11 -09 10-40"" .� 9 06 10 -10"� .-_ 9 06"' ... 9' - 02" 7' - 09" 9' - 02" 7' - 09" 11l -'0610"� _. * 13 05 s�. j 11 O6 10 07" 11 06 _ 10 07 8'- 03" l 7' - 00" 8'- 03" 7' - 00" *10 00" 7 01" `12 01'µ • 10 06 _ 9 07 -10 06 9 07 7 09 ' 8 10 7 09' 7' - 06" 6' - 04" 7' - 06" 6' - 04" 6. 05 1} '8 '10" . r4 6 05 110 11 - 13' 05" -�-13' - 02" 13' - 05" 13' - 02" 12 „ 02 n} 11 04" _ a 12 02" 11 04" . 10 08" 9 08" 10 08" 9 OB ��906 8 04 9 05"RF 8_ 04-y 11'-OB" 11'-10" 12'-01" 11 00" 9 10'- 02" �i 11 00" T 10 -02 9' - 07" 8' - 09" 9' - 07" 8'- 09" 8 05" I -0 8 05. .. Ty 7 �06" 0 9'-01" 1 „10-09" 11'-00" 10,-09" 10 -00^. q"9�03"�. ` _ 10 00� _.9 03^_ ., 8'- 09" --�-I T - 11" 8' - 09" 7 - 11" ,__ n—. _ * Indicates a configuration that will require an additional strap connected to the far beam (see Figure 72). PHILLIP J. x `£N�NEER z} N0. A 32035 °ssi onal E^9��� June 1, 2015 62 Manufacturer's Installation Manual - June 2015 CHAMP 1 ON' TABLE 23. WIND ZONE II SIDEWALL FRAME ANCHOR MAXIMUM SPACING ( MINIMUM ANCHOR SPACING 4'-0") 1 -5--04- * 5' - 04" 5'- 04" - 5' - 04" 5' - 04" * 5' 04" * 5' 04" * 5' - 04" "5'-04" 6-4 04" '5'-04" -5--04- 5'- 04* 5-. jr 04" _-5'----04_ * 5'- 04- 5'- 04" '5'104" '5'-04" '5'-04" 5 - 04" - 5' 04'I _5' -04-- 5�- 04- -5--04- 5' 04" '5'-04" '5'-04" 5' - 04" 5'- 04- 5'- 04" ' 5'.- 04" - -5--04- 5'- 04" 5'-04" '5'-04" '5'-04 - '5'-04^ ' 5' - 04" ' 5'I- 04" ' S' - 04" ' 5'- 04- 5'- 04" - ' 5'- 04" ' 5' - 04" ' 5'- 04" 5'- 04" ^� 5 - 04" J 5'- 04" �5' - 04- 5- 04^_5 _ 04"---<<-.....__ ` 5' - 04" * 5'- 04° ' 5'- 04" ' 5'- 04" ' 5'- 04" ' 5'- 04" i -_._ ' 5' 04° _--- - J * 5' - 04" - - -- ' 5' - 04��u ' 5'- 04° 5'-04" '6 I'-04" 5'-04" '5'-04` ' 5'- 04" * $' - 04" -_ ' 5 - 04 T ' 5' - 04- 5'- 04" * 5' - 04" ' 5'- 04" ' 5'- 04" 5'-04" T -04"- '5'-04" `5'-04" ----�_-�_-f_ ' 5' - 04" 04. 5'- 04" ' 5'- 04" 5'- 04" , 5' - 04" - 5' - 04" -- ' S' - 04" -~ '15' - 04" y ' 5'- 04" ' 5'- 04- 5- 04" �y 5'- 04" 5'- 04" -+-, Y 5' - 04- 5'- 04" 5' - 04" 5'- 04" 5' - 04" 5'- 04" _ 5' 04" 04'_ _- - 5'- 04" „ ' 5'- 04" 5' - 04" ; 5'- 04" ' 5'- 04" ' 5' - 04- 5- - 04" Sy04"- R-`.5'-04- ? .5--04„ 5'- 04" 5'- 04" 5'- 04" 5'- 04" 5'-04"-0, 5'-04" '5'-04" ' 5'- 04" 5'- 04" ' 5'- 04" 5' - 04" V - 04"._5' 04" -5-- 4- 5'- 04" 5'- 04" 5'- 04" 5'- 04" '5'-04"-5'-04" 5'-0- -,- 'S'-04. 5'- 04" * 5'- 04" ' 5'- 04" ' 5'- 04" �.._._ _-__"--�-.. _-._-..._.�_-..- 04" ^�, 5"- 04" 5'- 04" ' 5' - 04- 5'- 04" 5'- 04" 5'- 04" 5'- 04" - 5' - 04" -5' - 04" 5' - 04" 5'- 04" 6-04" 5'- 04" 5'- 04" 5'- 04" 04" �� ' 04" "5' - 04" -5--04- 5'- .._.__.._.5' - 04" 5'- 04".._.- 5' - 04"�_____- 5'- 04" -^�5' - 04" - , 5-04- F - 04" 5'- 04" 5'- 04" -5--04- 5'- 04" ' 5'- 04" 5' - 04"-_ - 5' -04° - -- ' 5'- 04 5 - 04". i 5'- 04" 5'- 04" 5'- 04" 5'- 04" 5' - 04" 5' - 04"� 5' - 04" - 5'- 04" '5'-04" '5'-04° '5'-04" 04" 5'- 04" '5'-04" 5'-04"^ '5'-04" 5'-04 Indicates a configuration that will require the frame strap connected to the far beam (see Figure 72). June 1, 2015 Manufacturer's Installation Manual - June 2015 63 TABLE 24. WIND ZONE III SIDEWALL (MAXIMUM ANCHOR SPACING 4'-0") ANCHOR MAXIMUM SPACING 4'-00" '4'-00" 4'-00" '4'-00" - - 4'-0_ 0 ,r '4'-00° p:4' _00" g -4'-00' '4'-00" '4'-00" 4'-00" '4'-00" • 4' 00" 4 -��: 1 .4'_00"`. n .4'-00" ° 4'-00" '4'-00" 4'-00" '4'-00" 4'--00��^i '4'-00" 0 '4'-00" 4'-00 '4'-00" '4'-00" '4'-00" '4'-00" 4'- 00" • 4' - 00" IE 4'- 00" ce , '4'-00' 4'- 00" *4'-00- 4'- 00" ' 4'- 00" 4 -00" --� 4'-00- 4'-00" '4'-00 4'-00" 4'- 00- '4'-00" '4'-00" ' 4' - 00" n `4'-00" • 4- 00" ' 4 00- 4'--00 - I 4'- 00" 4'- 00" 4'- 00" 4`- 00" �, -4--OW a 4' - 00" �" ' 4' - 00" '4'-00" , '4'-00" '4'-00" '4'-00" 4' - 00" - • 4' -,00" ; _ ' 4'- 00° ',4, 00- 4'- 00" 4'-00" 4'-00" 4'-00" r - --00 ' 4'- 00" „ j ' 4' - 00" ° 4'- 00" 4'- 00" '4'-00" I '4'-00" '4'-00" '4'-00- `4'- 00- �� '4'-00" `4'-00" ° '4'-00" 4'-00" '4'-00" 4'-00" 4'-00" '4'-00" '4'-00- `4'-00" '4'-00" `4'-00" 4'- 00- -00 ;4,-00" 4'-00" 4'-00" 4'-00" 4'-00" 4'- 00- ;; 4'- 00- 4'-00" I, 4'-00" 4'-00" 4'-00" 4'-00" '4'-00" -r - �' 4 00" 4'- 00"' � , ` 4'- 00" � • 4' - 00" 4'- 00" 4'- 00" 4 00" 4 00' 4'- 00 i-47 00" N 4' -00 4 00 4'-00" 4'- 00- 4'- 00- '4'-00" . 4'- 00" yr . 4'- 00" Ii • 4'- 00" 4• . 4'- 00" 4'- 00" 4 - 00" 4'- 00" 4'- 00" 4' - 00" . _ t, !i 4"- 00" a 4'- 00" II '4'-00' 4'- 00" 'i4'-00" '4'-00" '4'-00" . 4 00" ..T.-._"._ •,4 - 00• 4- _ 00• : 4 -00 4'- 00" ',4' - 00" 4'- 00" 4'- 00" 4'- 00" I; 4' - 00" W - 00" _ a 4' 4'-00" 4-00" 4'-00° 4'-00" 4'-00-, ;, 4'-00" ,V-00"- - ,4'-00"Tmm 4'-00" 4-00" 4'-00" 4'-00" - -1 4'r-00" 00" - ° T 4'- 00" •� 4'- 00" 4' - 00" 4'- 00" 4'- 00" - 4`. 00_ 7 --" 4"_,0o``,fr` 4'- 00"" 4'_ 00" 4'-00" 4�-00" 4'-00" 4'-00" 4'- 00" �� 4j - 00 4' - OO"s;., 4'- 00" 4'-00" 4'1-00" 4'-00" 4'-00" ' 400 Ir-- - - 4;*- 00" i ' 4 - 00" Indicates a configuration that will require the frame 'strap connected to the far beam (see Figure 72). ILLIP J. `ENGINEER N0. {x A 32035 a� a 4,Ncnol En9�c June 1, 2015 64 Manufacturer's Installation Manual - June 2015 SIDEWALL VERTICAL ANCHORS Homes designed for Wind Zones II and III also re sidewalls. The vertical tie -down anchor straps (or are factory installed and indicate the locations. Ve shall connect to one double -headed anchor. Any factory -installed sidewall tie -down straps mu, regardless of the wind zone in which the home is vertical tie -downs along the Gets for connecting to the home) and frame sidewall tie -downs be connected to a ground anchor END WALL FRAME ANCHORS End wall frame tie -downs are especially importani for homes that are wider and have higher roof pitches because those features increase the surface area exposed to wind loads at the ends of the home. Use Table 25 to determine the number of end wall frame anchors required at the each end of each home section. TABLE 25. END WALL FRAME ANCHORS REQUIRED PER HOME SECTION ON EACH END OF THE HOME MAXIMUM ROOF PITCH 4.35/12 2 2 2 2 2 3 3 3 3 2 11 2 2 2 3 ji 3 j;�3 it 4 3 2 2 2 3 3 3 4 4 - 2 i! 22 2 Ii 3" --_. _ ,". _ - - - --,r-- —^ o - q ---- 2 2 2 3 3 3 3 4 3 3; 3 y i 3 N 3 3 III 4� 4 3 2 2 3 3 3 3 4 - END WALL VERTICAL ANCHORS End wall vertical anchors are not required. TAG UNIT FRAME ANCHORS (WIND ZONE I ONLY) Use sidewall anchor quantity on end walls and use end wall anchor quantity on side walls. I TAG UNIT VERTICAL ANCHORS Tag unit vertical anchors are not required. PORCH POST ANCHORS Wind Zone I anchors not required. Wind Zone II and III anchors located at vertical straps. OFFSET UNIT ANCHORS Anchor same as single section home (Figure 8). STEP 2. DETERMINE TIE -DOWN CONFIGURATION There are two primary tie -down configuratioris: the near beam and the far beam methods. If the anchor spacing selected in the appropriate anchor table (Table 22, Table 23 or Ta- ble 24 has an asterisk (*) then use the far beam method. Otherwise, use the near beam method (Figure 72). Each method varies by wind zone as described below. • Near beam method. For all Wind Zones, connect an anchor strap from the an- chor head to the beam closest to the anchor. In addition for Wind Zones II and III, connect a vertical strap from the sidewall of the home to the anchor head us- ing a double -headed anchor. • Far beam method. For Wind Zone I connect anchor straps from the anchor head (using a double -headed anchor) to both of the home's main frame beams. For Wind Zones II and III connect 'one anchor strap from the anchor head (using a double -headed anchor) to the home's far beam and one to the sidewall of the home. 3 4 4 3 4 1�4 3 4 - 4 4 � P of ALge 9� PHILLIP J. 9 COP NQ �Ak NGINEI ER z} 32035 a< r°ssionol Efl June 1, 2015 Manufacturer's Installation Manual - June 2015 65 I I Near Beam Floor Frame Tie -Down Floor Near Beam (O nd In Wind Frame Zones II and 110 Tie -Do= VerticalSidewal� Maximum VerticalSidewall I Far Beam Frame Tie-Down(roBe Tie -Down (Wind \ 1 Tie -Down (Wind � Added When Near Beam Strap Angle zone II and III \ I Ground Level Zones II and III Ground Level Exceeds 60' As Indicated By C) On Only) Only) Anchor Charts) Stabil¢erPlate �Stabifer Plate I, i \ Ground Anchor ,� GroundAnchor STEP 3. SELECT ANCHORS 'I Use the torque probe results from Prepare the Site, STEP 5. DETERMINE SOIL - BEARING CAPACITY AND FROST LINE (p. 12) and the anchor manufacturer instruc- tions; select the type and length of anchor toluse. The installed ground anchor size (length) must be listed (i.e. approved) for the6oil class. Make sure the anchor is of sufficient length such that the top of the helix is below the frost line. Select a shaft diameter sufficient toil resist excessive torsion, "ring -off' (when the helix or anchor head separates from shaft) or shaft splitting. Consult the anchor supplier for guidance. Review all of STEP 4. INSTALL ANCHORS ( . 66) and STEP 5. INSTALL STRAPS (p. 68) before making final anchor selections to determine when single -headed vs. double -headed anchors should be used. Follow the specifications in Table 26 when se- lecting stabilizing system components. TABLE 26. ANCHOR SYSTEM MATERIALS SPECIFICATIONS Figure 72. Lateral tie -down con- figurations Anchors must be tested and listed to resist a minimum ultimate load of 4,725, Ibs and a minimum allowable working load of 3,150 Ibs or ultimate and corresponding working load limited by soil conditions and anchor Anchors length. The working load is the maximum load the designer can use. Ground anchors must be provided with protection against `weather deterioration and corrosion at least"equivalent to that provided by a coating of zinc on steel of not less than 0.30 oz per sq ft of surface coated. Straps must be minimum 1-1/4" x 0.035" zinc -coated (0.30 oz per sq ft) steel strapping conforming to Straps ASTM D3953-97, Typel1, Grade 1, Finish B with a minimum allowable working load capacity of 3,150 Ibs and a minimum ultimate load of 4,725 Ibs. Slit or cut edges of zinc -coated strapping do not need to be zinc coated. The size and type of stabilizer plate, required by the ground anchor manufacturer, will be specified in the anchor manufacturer's instructions. Stabilizer plates must be provided with protection against weather deterioration and corrosion at least equivalent to that provided by a coating of zinc on steel of not less than 0.30 oz per sq ft of surface coated. Alternatively, ABS stabilizer plates may be used when listed and certi- fied for such use. (Minimum allowable working load of 2730 Ibs) STEP 4. INSTALL ANCHORS Before beginning anchor installation, check for piers and frame members that may interfere wi utility companies to determine the location of u and phone lines, and water, sewer, and gas pil chor locations. Also check for homeowner-inst, connecting exterior lighting or sheds to the hon FRAME ANCHORS Frame anchors shall be installed against a structions under the home such as the tie down strapping. Check with arground utilities, such as electrical that may be buried in potential an - Id wires and pipes, such as those These must also be avoided. plate. Grading area around anchors. Anchor heads should not rest in sunken spots. Grade the ground so that water does not collect around anchor heads, but runs away from the anchor and out from under the home. Do not bury anchor heads. WMEMMMUM 66 Manufactu �er's Installation Manual - June 2015 Main Sidewall Frame Tie -Down Strap Ground Anchor with Stabilizer Plate Stabilizer Plate Configuration j Stabilizer plate configurations Figure 73 are suitable for homes in all wind zones. An- chors may be installed after the home is set. A stabilizer device, typically an ABS or metal plate, is used to prevent the top of the anchor from slicing through the soil when the load is applied. Stabilizer plates are availab`e in a variety of widths. Choose the widest plate that can be driven into the soil to maximize resistance to movement. The LAW may have stabilizer plate requirements. Install anchors with stabilizer plates as follows: 1. Locate anchor. Select a location for the anchor under the home but within four inches of the exterior wall Figure 74. Avoid locations that will interfere with skirting. i I -Beam i 2. Install anchor. To assure that the anchor attachment point will end up at the stabilizer plate, start the anchor insertion approximately 12 inches back from the desired location if using a 48 inch long anchor, or approximately 16 inches if using a 60 inch long anchor. Install the anchor at about 15 degrees off verti- cal, with the head tilted away from the home. Install the anchor to a depth of approximately one half its length. 3. Drive stabilizer plate. Drive the stabilizer plate into the ground to its full depth at the point determined in Step 1. 4. Complete anchor installation. Screw the anchor the rest of the way into the ground. The finished anchor must be installed to its full depth. VERTICAL ANCHORS To install vertical anchors, screw the anchor into the ground directly under the strap at- tachment point on the home until the bottom of the anchor head is flush with the ground or no more than one inch above grade. STEP 5. INSTALL STRAPS Figure 73. Stabilizer plate configuration Figure 74. Determining an- chor and stabilizer plate loca- tion Soil depression. Do not locate anchor heads in soil depressions where water may pool. 1-I.H. RAVIN'-- Manufacturer's Installation Manual - June 2015 67 Follow the instructions below to connect straps from the home to sidewall frame, end wall frame and vertical anchors. Always protect straps at sharp corners including around I -beams with radius clips or other methods (Figure 75). Radius clips may be fabricated from 26ga (min) by 1 '/- inch wide galvanized steel strap formed to fit around corners. I i i I Protect ToI/—I-Bearn Bottom of BIStrap is WraAround III SPLICING STRAPS Splicing may be required when a pre-cut stray down straps are riot permitted in a 'Y' configul plying one splice clip from above and the othe ly seal the splice clips (Figure 76). Do not run chor head bolt. SIDEWALL FRAME ANCHORS Install straps to sidewall frame anchors as is of insufficient length. Splices in tie- ition. Overlap straps by 12 inches, ap- from below; use a crimping tool to tight - any portion of the splice through an an - Connect strap to home. Connect one end of the strap to the home connec- tion point using approved buckles or clips (swivel or hook clip preferred). 1OWrap strap around main beam Connect strap to anchor. Connect the other end of the strap to the split bolt in the anchor. Leave enough strap lengthlto be able to make at least three, Figure 75. Radius clips Figure 76. Tie -down strap splice Figure 77. Strap to beam connection V&10Zr1Z Strap to beam connection. Regardless of the strap suppli- er's recommendations, the strap must be connected to the top of the main beam to pre- vent damage to the structure. 68 Manufacturer's Installation Manual - June 2015 but no more than five complete turns arouOd the bolt before it becomes tight (approximately 2 1/2 inches per turn or 7 1/2 to 13 inches total). Fewer than three turns and the strap may not hold onto the bolt when force is applied. Conversely, more than five turns may not lit within the U-channel of the an- chor head. Follow the procedure outlined In Figure 78. OInsert the tension bolt into the qO Place the strap through the slotted anchor head and loosely attach shank of the tension bolt and bend the hex nut. up 'to 90". I I I I OOnce tensioned to the point that 07I Once fully tensioned, align the counterclockwise resistance square neck of the bokwiththe appears, use a 5/8"open end square recess in theanchorhead wrench to hold the square neck and tighten the hex nut. This will while repositioning the 15116" draw the two together and lock the tensioning wrench to continue system into final position. tensioning. Repeat as required. OUsing a 15116" socket or open end wrench, rotate clockwise, wrapping the strap around the tension bolt. If approved by the manufacturer, double head anchors may be used for both diagonal andvertical tie -down strap tensioning. Tension the diagonal tie -down strap first. Follow Steps 3 through 7 to install straps to anchorhead. 3. Pretension anchor. For anchors with stabilizer plates, pretension the anchor by pulling it up to the stabilizer plate using the strap and take-up bolt to move the anchor head. Continue pulling the strap until the plate moves a small amount (about 1/2 inch). This is called packing the plate and it will yield the strongest resistance (the bottom of the anchor head should be maximum 1/4 inch above the top of the stabilizer, plate). END WALL FRAME ANCHORS Attach straps to the bracket welded by the manufacturer to the frame (Figure 79). If no brackets have been installed, use approved beam clamps designed specifically for this purpose, available from anchor suppliers. Connect straps to anchors following same procedure as for sidewall frame anchors. When more than one anchor per frame is re- quired, use swivel brackets and space anchors a minimum of 48 inches o.c. Figure 78. Procedure for connecting the strap to frame and anchor d# r Z Anchor head location. As the anchor is pulled up to meet the stabilizer plate, the head of the anchor will rise. In its final position, the bottom of the anchor head should be no more than 1/4 inch above the top of the stabilizer plate. M .-FACTIIEEC BEManufacturer's Installation Manual - June 2015 69 Figure 79. End wall frame anchor attachment method STEP 6. TIGHTEN AND ADJUST STRAPS After all anchors have been installed and pre ,tensioned, recheck all anchor straps to assure that they are tight and that the anchorlshafts have remained in contact with the stabilizer plates. Do not over -tension straps. I 70 Manufacturer) s Installation Manual - June 2015 Connect Utilities This chapter contains procedures and requirements for the connection and testing of utility hook-ups. Responsibility for making utility connections varies by location. Consult the LAHJ and the utility before connecting the home to any utilities. STEP 1. CONNECT ELECTRICAL SERVICE (p. 71) STEP 2 CONNECT WATER SERVICE (p. 74) STEP 3. CONNECT GAS SERVICE (p. 76) STEP 4. CONNECT OIL SERVICE (p. 78) STEP 1. CONNECT ELECTRICAL SERVICE The home is designed for connection to an electrical wiring system rated at 120/240 volt AC. All electrical field work must be done by a licensed electrician or other person approved by the LAHJ. I FEEDER WIRE AND EQUIPMENT SIZES The current rating (in amperes) of the home can be found on the tag located on the outside next to the feeder or service entrance, and on the electrical distribution panel. Using this information, determine the required feeder wire size from Table 27. These sizes are based on an ambient temperaturelof 86 degrees Fahrenheit and do not take voltage drop into consideration. Acceptable conductor types are: RHH, RHW, RHW-2, THHN, THHW, THW, THW2, THWN, THWN-2, XHHW, XHHW-2, SE, USE, and USE-2. TABLE 27. ELECTRICAL FEEDER WIRE AND EQUIPMENT SIZES FOR COPPER CONDUCTORS Minimum Conductors (Cu) Max. Size I Breaker Size in Neutral FeederMain Panel Box Load box size Conduit Diameter i Black 7r) (Neutral) Grounding Ground (AMPS) (AMPS) .o w e r) 50 i; 35 i NA 1 51 #4 AWG #8 AWG ,, #10 AWG `1 #8 100 70 10x10x4 1-1/4 i #4 AWG #4 AWG #8 AWG #8 200 140 10x16x4 2 r j 2/0 AWG i • 1/0 AWG #6 AWG ;' #4 225 158 10x16x4 2 3/0 AWG 2/0 AWG #4 AWG #4 400 280 `, 10x24x4 3 ;; 400 kcmil 300 kcmil ;; #3 AWG 1/0 Special precautions when installing electrical ser- vice. Installation of the electric power to the home can cause exposure to live electrical circuits. Exposure to live electrical circuits or improper grounding of the conductor in the panel board may result in severe shock or possible electro- cution. A qualified installer must make the connections for the electric power. KNIF-MiTAIN• .... , OM.H ,,,�„r. Manufacturer's Installation Manual - June 2015 71 FEEDER CONNECTIONS Feeder connections are made from above or from below the home as follows: From above — mast weatherhead feeder The routing, connection, and support of the s( Homes equipped this way contain all necessa panel. However, the feeder conductors (not p. site. If the masthead is located above the roof eight feet above all roof points that the condui to this rule: (1) The vertical clearance may be minimum slope of 4 in 12; and (2) The vertica if no more than four feet of service -drop condi if they terminate at a through -the -roof racewa, ance must also be provided from the final gral measurement may vary from 10 feet to 18 fee pated below the service drop (refer to the NE( heads above the point of attachment of the se rain -tight. If individual conductors do not exter �rvice drop must meet local codes. ry conduits to the electrical distribution ovided with the home) are installed on overhang, allow a minimum clearance of otors pass over. There are two exceptions educed to three feet if the roof has a clearance may be reduced to 18 inches actors pass above the roof overhang, and ror approved support. A minimum clear- s to the service -drop conductors. This t� depending on the types of traffic antick :). Unless impractical, locate service rvice-drop conductors and make them dj downward, form drip loops. From below — underside junction box feeder) A section of conduit is factory installed through th with approved fittings and conduit (not provided v service entrance cable enters the crawl space. I conductors from the main power supply to the pa of the main panel board inside the home, or the F conductors enter the crawl space, a separate ser fer to Table 27 for the conductor and junction bo, provide the supply connection including the feed( duit connectors. Protect conductors emerging fro inches below grade to eight feet above grade, or The distance measured from the top surface of a the finished grade must meet the minimum burial Use a moisture -proof bushing at the end of the c( emerges. floor cavity. Connect to that conduit th the home) to the point where the tall properly -sized service entrance el board. Depending on the location lint at which the service entrance ice disconnect may be required. Re - requirements. The installer must conductors, junction box, and con- i the ground from a minimum of 18 the point of entrance to the home. iuried cable, conduit, or raceway to equirements outlined in the NEC. iduit from which the buried cable GROUNDING The home must be properly grounded to protect the occupants. The only safe and ap- proved method of grounding the home is through ai electrically -isolated grounding bar in the manufactured home distribution panel board.7his grounds all non -current - carrying metal parts to the electrical system in the home at a single point. Each neutral conductor must be connected to the system grounding conductor on the supply side of the main disconnect in accordance with Articles 250.24, 250.26, and 250.28 of the National Electrical Code, NFPA No. 70-2005. Where the meter base has a disconnect (typically when the meter is more than 6 feet from the service electric panel, although this may vary by LAHJ) the ground and neutral should be bonded at that disconnect and then grounded to the driven earth ground. Four wires will leave the service electric panel to the disconnect. Three wires will enter the disconnect from the meter base (refer to Figure 80). Where there is no disconnect on the meter base or between the meter base and ser- vice electric panel (typically when the meter is within 6 feet from the service electric panel, although this may vary by LAHJ), the main circuit breaker in the service electric panel becomes the first disconnect. In this case, the neutral and ground are bonded in the service electric panel and connected to the driven learth ground from the service electric panel. Three wires lead between the meter base and the service electric panel (refer to Figure 81) i , // Power supply. A large enough power supply must be available at the site. An inadequate power supply may result in improper op- eration of and possible damage to motors and ap- pliances. It may also in- crease electricity costs. V&10PZrZ Grounding the electrical system. Do not provide electrical power until the grounding electrode is in- stalled and connected. When the meter base is not on the house never use the neutral conductor of the feeder cable as a ground wire. 72 Manufacturer's I''pstallation Manual - June 2015 Service Entry —Mein Panel (May Be Above Or Below Ground) Enclosure P-2' Conduit To a Neutral service Head Equipment Bus Bar Ground Bus Bar Meter, BjDisc-onnedct eterbase Comparound From Matei Eisconnect Banding Strap2' Conduft Not Installed I Grounding Lug +-2' Conduit To Chassis Installed at Factory ounding Rod Metallic Conduit Or Fittings To Be Effectively Grounded To Equipment Ground Black -'HOT' To A Or B Red -'HOTS To A Or B White To Neutral Bus Bar Ground To Equipment Ground — Mein Panel Service Entry Enclosure (Above Or Below Ground) �&__ 2' Conduit To NIutralService Head Equipmarrt Bus BarGround Bus Bar =Ieter By Utility ❑ ' Bonding Strap INot Installed 2° Conduit j 2' Conduit Grounding Lug 1 Installed at Factory To Chassis To Mein To Grounding Rod —Panel Metallic Conduit Or Fittings To Be Effectively Grounded To Equipment Black-'HOr To A Or B Ground Red - °HOT To A Or B IWhite To Neutral Bus Bar I In all cases, a grounding electrode conductor and a ground wire must be installed ac- cording to the following specifications:1 1. Grounding wire to be per Table,27 provided by the manufacturer. If manufacturer provides a minimum 1/2 inch EMT or conduit raceway, the #6 minimum bare cop- per wire is provided by the retailer for installation. 2. The clamp connecting the grounding wire to the electrode shall be suitable for di- rect burial and located flush or below ground level. 3. Use a listed 5/8 inch diameter'by eight foot long iron electrode or nonferrous rod of at least 1/2 inch diameter by eight feet long for grounding (larger sizes may be re- quired by the LAHJ due to soil impedance). 4. Drive the electrode to a depth of not less than eight feet so that at least eight feet of the electrode is in contact with the soil. 5. When rock is encountered, the electrode may be driven at an angle not to exceed 45 degrees from vertical or buried in a trench that is at least 2-1/2 feet deep. FIELD INSTALLED METER BASE When a meter base is installed in the field, Figure 82 and the following requirements must be adhered to: • Install the meter base according to the manufacturer's instructions. • Use straps to support any conduit. Do not use the meter base equipment for support. • Use exterior equipment and enclosures listed as weatherproof and entrance conductors listed for wet locations. Figure 80. Electrical feeder connection when meter has a disconnect installed (typi- cally more than 6 feet from service electric panel). Figure 81. Meter base wiring when there is no separate disconnect installed (typically within 6 feet of service elec- tric panel). MA ...."U., Manufacturer's Installation Manual - June 2015 73 • The grounding bar may be installed separate from the neutral bar for purpos- es of testing the electrical system.' • The grounding bar may be isolated during the electrical check and re- attached, after the tests are completed. • Check with the local electrical utilityito verify meter base requirements and lo- cations and distances for the main panel and meter box. • The field installed meter base enclosure must be installed in accordance with its listing. Fasten securely to exterior' wall studs and provide for a weather - tight seal. • Check the local code for any require i ents regarding the location of the meter base. MI ter Enclosure Meter I 1W4 Nrspace BetAen Meter Enclosure And STEP 2. CONNECT WATER SERVICE CONNECTION To connect the home's water system to the water source, identify the water inlet locat- ed under the home (usually below the water heater compartment or utility room) and follow the procedure described below (refer to Figure 83): 1. Flush pipe. Flush field -installed water piping free of all debris prior to connec- tion to the home's water inlet. 2. Clean threads. Ensure that pipe threads are clean. 3. Install pressure -reducing valve. If the local water supply exceeds 80 psi in- stall a pressure -reducing valve. 4. Connect valve. Install a main shut-off valve between the water supply and the inlet on the home. Locate the riser for the shutoff valve underneath or ad- jacent to the home. Select a full flow gate or ball shutoff valve, or equivalent valve. To prevent the possibility of fresh water contamination install an anti - siphon valve on all field installed exterior faucets. II I it Figure 82. Meterbase clearances. Maximum water pressure. The water system for the home was designed for a maximum inlet pressure of 80 psi. 74 Manufacturer's Installation Manual - June 2015 Water Optional Hose t (Not Supplied) Connect To T Here For Water System Test Locate Water Riser Underneath or — Adjacent to Home Service Connection (Not Supplied) Mandatory Shut -Off Valve (Not Supplied) 5. Install water heater discharge drain. Inspect the drain opening on the water heater to ensure that it is clear of any obstruction. If the home is to be installed on a basement or enclosed crawlspace, install drain pipe connecting the dis- charge from the water heater temperature and pressure relief valve to the out- side or to a sump. 6. Install water heater drip pan drain. Assure that the drain for the water heat- er drip pan does not terminate under the home. Using the materials provided and the accompanying instructions( run a drain line from the water heater drip pan through the wall or floor to thelexterior of the crawl space. Terminate the line between six and 24 inches above grade. (Figure 84). Make the termina- tion point rodent proof. 7. Insulate. In areas subject to freezing temperatures, protect with insulation or heat tape pipes, valves and pressure reducers that are exposed to the outdoors; and pipes in water heater compartments with non -insulated doors. Connect heat tape to the electrical outlet under the home near the water supply inlet. Figure 83. Water system connection Using check valves. Install a check valve on the water inlet to prevent water system drainage in the event of a loss of water pressure from the source. Such pressure loss could cause the water heater to drain, exposing the heating elements of electric water heaters caus- ing them to fail. Figure 84. Water heater drip pan and drain F . 0 // Selecting heat tape. Use only pipe -heating cable (tape) listed for manufac- tured homes, and install it in accordance with the ca- ble (tape) manufacturer in- stallation instructions. Testing water lines. Only use pneumatic (air) testing when hydrostatic testing is not practical. Air under pressure is explosive. Ex- ercise extreme caution and notify all site personnel of M „e,.�,e,ro,e ernuur• Manufacturer's Installation Manual - June 2015 75 TESTING After testing the electrical system and com tem for leaks using one of the procedures water faucets, spigots, and toilet -tank float Hydrostatic (preferred): 1. Fill water heater. Confirm that the 2. Pressurize system. Connect a by cation shown in Figure 83. Pressu then isolate it from the pressure sc thest points in the system. 3. Hold pressure. Monitor the presst 4. Fix leaks. If the pressure drops be by cutting out and discarding bad I pipe or joints with couplings. 5. Repeat. Repeat the test until all le; Pneumatic: the water lines check the water sys- ed below. Before testing, close all heater tank is full of water. tatic pump, valve, and gauge to the lo- the system with water at 100 psi, and :. Bleed all air from the highest and far - for at least 15 minutes. 100 psi, locate and correct any leaks sections or joints and installing new have been eliminated. 1. Bypass water heater. Bypass the hotl% outlet and cold inlet water lines from the gether. This will protect the hot water tar volved in the test from possible injury. 2. Pressurize system. Connect an air purr inlet, pressurize the system to 100 psi ai the system. 3. Hold pressure. Monitor the pressure foi drops below 100 psi, locate any leaks bl tions and looking for bubbles. 4. Fix leaks. Correct any leaks by cutting c or joints and installing new pipe or joints 5. Retest. Repeat the procedure until all le 6. Restore connections. Reconnect the % FREEZE PROTECTION FOR UNOCCUPIED HO If the home is to be left unheated in cold weather, follows: ater heater by disconnecting the hot water heater and joining them to- ik from damage and protect those in - and pressure gauge to the water isolate the pressure source from least 15 minutes. If the pressure applying soapy water to the connec- and discarding bad pipe sections th couplings. > have been eliminated. :r heater and the water supply. water lines from freezing as 1. Disconnect supply. Turn off the water supply and disconnect the water sup- ply inlet. � 2. Drain water heater. Turn off the water heater; if necessary, attach a hose to the valve to direct water away from under th'e home, open the drain valve and drain the tank completely. i 3. Drain faucets. Open all faucets throughout the home (including the laundry area if plumbed, and any exterior faucets) and let them drain completely. 4. Drain toilets. Flush toilets and drain water tanks completely. 5. Close faucets. Close all water faucets with the exception of one. 6. Connect compressor. Connect a maximum of 30 psi air supply to the water inlet connection using a low pressure compressor. 7. Open faucets. With the air supply on the systeem, open one faucet at a time throughout the home. 11 8. Disconnect compressor. After the entire system has been drained of all water, disconnect the air supply and close the water inlet valve. 9. Pour anti -freeze. Pour an antifreeze solution into all drain traps, including sinks, tubs, and toilets. Be sure that the antifreeze is safe for the fixtures and P-traps. STEP 3. CONNECT GAS SERVICE CONNECTION If the home uses natural or liquid petroleum gas (LPG, also known as propane) for water or space heating, cooking or other appliances, follow the procedure described below: the test. Wear protective eyewear and take precau- tions to prevent impact damage to the system while the test is in progress. Do not pneumatically test CPVC systems. Pneumati- cally test Flow Guard Gold systems only at low pres- sure levels (20 psi or less). Pressurizing water lines. When pressurizing the wa- ter system, connect the pump to a location above a closed shut-off valve so as not to introduce pressure into the municipal water supply. Toilet -Tank Water Level. Adjust toilet tank water lev- el to level indicated using the water level adjustment screw located on the toilet tank float valve. i , /, Anti -Scald Valves. Anti - Scald valves have been in- stalled on all tubs, tub/showers and showers in the home. The valves are preset by the valve manu- facturer to about 105°F (41 °C). After the water lines have been flushed, the out- let temperature at each tub, tub/shower and shower must be tested to ensure that it does not exceed 120°F(49°C). Water should run for at least one minute on the hottest setting be- fore taking the temperature reading. Some customers may desire temperatures higher than 105°F (41 °C). Temperature may be ad- justed using the instructions provided with the valve. In no case should the temper- ature exceed 120°F (49°C) as this may result in serious bodily harm and/or death. Valve instructions can be found in the HomeOwners manual. i , /, Installing gas lines. Only qual- ified professionals may con- nect and test gas service. 76 Manufacturer's Installation Manual - June 2015 1. Inspect vents. Assure that all exhaust vents on gas -fired equipment are se- curely connected and that roof jacks and stacks have not come loose during transit and they are properly installed. 2. Review appliance instructions. Revie each appliance manufacturer's in- structions before the home is connectep to the gas supply. Most gas appli- ances are typically configured to operate on natural gas. If the gas supply will be LPG, consult the appliance manufacturer's instructions to determine what changes need to be made. For homes sII located above 3,000 feet, appliances may require a different orifice. 3. Remove cap. Remove the protective Icap from home inlet pipe and install a full flow shut-off valve at the supply in (Figure 85). 4. Install regulator. The gas piping system is designed for a pressure that is at least seven inches of water column (4 oz. per sq in or 0.25 psi) but not more than 14 inches of water column (8 oz. per sq in or 0.5 psi). If gas from any supply source exceeds, or could exceed this pressure, install a regulator if re- quired by the LAHJ. 5. Connect supply. Using matching threaded fittings, connect the gas supply to the inlet side of the shut-off valve. 6. Close valves. Close all valves at appliances prior to opening the main supply valve. Full Flow Shutoff Valve Required (Supplied By Others) T Source of Gas I TESTING Test the gas piping system in the following two ways: 1) piping only and 2) entire sys- tem. Consult with the LAHJ for any additional testing or start-up requirements. Before testing is begun, the temperature of the ambient air and the piping should be approximately the same. Conduct the tests when and where air temperatures will re- main constant. Piping only test (all appliances isolated) 1. Isolate appliances. Isolate all appliances from the system by closing all ap- pliance shut-off valves. 2. Attach gauge. Attach to the home's gas inlet a mercury manometer or slope gauge calibrated in increments of not more than 1/10 lb. 3. Pressurize system. Using;an air compressor, pressurize the system with compressed air to three psi and isolate the pressure source from the system. Union (Supplied By Others) 4. Monitor pressure. Monitor the pressure for at least 10 minutes. 5. Check for leaks. If pressure drops below three psi, check for leaks by apply- ing a non -corrosive, ammonia -free gas leak detection fluid to the joints at all valves, appliance connections, and crossover connections (do not use dish washing detergents, soap, or other household chemicals). If bubbles form, tighten the connection and recheck. 6. Repair leaks. If leaks persist, replace defective pipes or fittings with sound material and retest. 7. Release pressure. Release pressure and open all appliance shut-off valves. 8. Rinse connections. Thoroughly rinse all tested connections with water to remove leak detection fluid. Figure 85. Gas service con- nection i ' //I Fill gas water heaters. Be- fore lighting the pilot on a gas powered water heater, fill the tank with water. Fail- ure to do so could damage the water heater. Manufacturer's Installation Manual - June 2015 77 Entire system test (with appliances) 1. Close appliances. Close all gas equipment controls and pilot light valves ac- cording to the individual gas equipment manufacturer's instructions. 2. Open valves. Assure that gas shut-off valves for all gas equipment are in the open position. 3. Attach gauge. Attach to the home sl gas inlet a pressure gauge calibrated in ounces. 4. Pressurize system. Pressurize the ? ounces (3/8 to 1/2 psi, or 10 to 14 in( 5. Check for leaks. Check for leaks as only test. Replace defective pipes or 6. Rinse connections. Thoroughly rins remove leak detection fluid. GAS APPLIANCE START-UP Stem with compressed air to six to eight -s of water column). ascribed above in step 4 of the Piping tings with sound material and re -test. all tested connections with water to Open the shut-off valve for each appliance and 'adjust the burners according to the appli- ance manufacturer's instructions. Verify that thelfurnace and water heater thermostats are operating properly and set them to the desired temperatures. STEP 4. CONNECT OIL SERVIC Homes that are equipped with oil burning furnaces must have oil supply piping installed and tested on site by a qualified professional in accordance with NFPA 31, Standard for the Installation of Oil Burning Equipment, 2001 orlthe requirements of the LAHJ, which- ever is more stringent. The home manufacturer does not supply oil piping or tanks. C•]Lt%1►IZ1*411Is] l Consult the furnace manufacturer's instructions for�proper pipe -sizing and installation procedures. Where piping is run through the bottom of the home, ensure all holes in the bottom board are sealed tight with foam,'masti and/or tape specially made for that purpose and made rodent proof. When equipping the home with an oil storage tank, comply with the following: • Install the pipe with a gradual slope toward the fill end or drain plug (if so equipped) to facilitate pumping or draining of water and sludge. • Provide a readily accessible approved manual shut-off valve at the outlet, in- stalled to close against the supply. • Equip the tank with an approved oil filter or strainer located downstream from the tank shut-off valve. Use a filter or strainer containing a sump with a drain to trap water. • Equip under ground tanks with a filler neck extending one foot above grade and a minimum 1-1/4 inch diameter vent pipe extending at least two feet above grade. • Locate the tank to be accessible for service and inspection, and safe from fire and other hazards. • If the tank is located inside a compartment of the home, provide ventilation at the bottom of the compartment to permit diffusion of vapors. If the tank is fixed to the home, provide for filling and drainirg from the outside. • Insulate interior tanks from the structural members of the home. Provide tanks so installed with an outside fill and vent pipe and an approved liquid level gauge. • Install tanks that feed vaporizing type oil furnaces so that oil flows by gravity. To achieve efficient gravity flow, make sure that�the bottom of the tank is at least 18 inches above the furnace oil control level. • Tanks for gun type oil furnaces (these furnaces include a fuel pump) may be installed above or below ground. OIL SYSTEM TESTING Before operating the system, fill the tank to capacity with the fuel to be burned and visual - Iv check all ioints in the system for leakaae. Replace (do not repair) parts that leak. V&O Z Testing oil tanks. All oil storage tank and piping in- stallations and tests must meet all applicable local regulations and should be made only by experienced, qualified personnel. W�NWNNVMM 78 Manufacturer's Installation Manual - June 2015 Prepare Appliances and Equipment This chapter provides instructions for installing and/or preparing appliances and other equipment. While the items below can be completed in any order, the last item, CONDUCT ELECTRICAL TEST, must be done last. INSTALL AIR CONDITIONER OR HEAT PUMP (p. 79) . PREPARE HEATING SYSTEM (p. 80) INSTALL REMOTE HEATING AND COOLING EQUIPMENT (p. 80) PREPARE VENTILATION SYSTEM. (p. 81) PREPARE FUEL -BURNING WATER HEATER (p. 81) INSTALL EVAPORATIVE COOLER.(p. 82) PREPARE CLOTHES DRYER (p. 83) PREPARE SMOKE ALARMS (p. 84) PREPARE FIREPLACES (p. 84) PREPARE KITCHEN AND BATH APPLIANCES ! FIXTURES (p. 86) INSTALL EXTERIOR LIGHTING (p. 87) INSTALL CEILING FANS AND LIGHTING (p. 87) TEST ELECTRICAL SYSTEM (p. 88) INSTALL AIR CONDITIONER OR HEAT PUMP (if applicable) CENTRAL UNITS Install split system or unitary central air conditioners and/or heat pumps as follows: 1. Check suitability. Check the home's Comfort Cooling Certificate (may be includ- ed with the data plate) to confirm that the home is suitable for installation of cen- tral air. If so, note the air distribution system's rated duct capacity (BTU/hr), any equipment sizing guidance provided by the manufacturer and information provid- ed to calculate the home's heat gain. 2. Select equipment. Select equipment with a rated heating capacity (BTU/hr) not exceeding the maximum indicated on the home's data plate and a rated cooling capacity sized in accordance with Chapter 28 of the 1997 ASHRAE Handbook of Fundamentals or ACCA Manual J, Residential Cooling Load, 8th edition. Infor- mation needed to calculate the home's heat gain can be found on the home's comfort cooling certificate. Choose equipment with a minimum circuit amperage (found on the equipment rating plate) no greater than the branch circuit rating of the exterior air conditioning receptacle (indicated on the adjacent tag), if present. 3. Install A -coil. When installing a cooling A -coil in a down -flow furnace that incorpo- rates a fresh air intake duct, position the duct in the furnace cavity according to the furnace manufacturer's instructions (Figure 86). For electric down -flow fur- naces, trim the ventilation duct as needed to allow installation of the A -coil and secure the duct to the wall of the compartment or to the top of the A -coil. Do not restrict the flex duct opening; allow the duct insulation to contact the A -coil, or al- low the duct to become kinked, restricted, or configured to form a trap. Use listed appliances. All appli- cable appliances must be listed or certified by a nationally recognized testing agency for the application for which the unit is intended and installed in accordance with the terms of its listing or certification. Properly sizing equipment. Oversized cooling equipment can lower energy efficiency, reduce comfort, shorten equipment life, and may cause moisture prob- lems in the home (including po- tentially damaging the home's structure). Sizing guidance is pro- vided by the Manufactured Hous- ing Research Alliance Cooling Equipment Sizing Guidelines available at www.mhrahome.ong. CHAMPION' Manufacturer's Installation Manual - June 2015 79 'Whole House" Ventilation Flex Dud Fumace PREPARE HEATING SYSTEM If the home does not contain a factory installed heating appliance, install a remote heating appliance according to INSTALL REMOTE HEATING AND COOLING EQUIPMENT, p.80. Prepare fuel -burning heating systems included with the home as follows: 1. Inspect for damage. Inspect the furnace and report any damage to the home manufacturer. 2. High altitude. If the home is located more thbi indicated in the furnace manufacturer's instruc each 1,000 feet above sea level. This work mi some jurisdictions, licensed) technician. 3. Convert for LPG gas. If LPG gas (propane) w from natural gas to LPG gas use. Conversion i (if required by the LAHJ) licensed technician. 4. Install intake air pipe. Consult the appliance i maximum allowable pipe run length, requireme ative to expected snow levels (check with the I acceptable materials, pipe supports, and 'pipe 1 5. Install flue. For combustion appliances, install sembly as described in PREPARE FIREPLAC 2,000 feet above sea level or as )ns, derate gas furnaces 4% for t be done by a qualified (and in be used, convert the appliance st be made by a qualified and nufacturer's instructions for s for air dampers, locations rel- -IJ for expected snow levels), urination requirements. e flue roof cap and stack as- i, Chimneys (p.84). INSTALL REMOTE HEATING AND COOLING EQUIPMENT Install remote units in compliance with all heating and cooling equipment requirements in this chapter above and the following: 1. Locate connections to the home. Find the manufacturer -installed connectors, labels, or tags under the home indicating the required connection points for sup- ply and return air. If connectors are not provided nor location indicated, select a supply duct location such that there are approximately equal numbers of supply registers forward and rear of the connection point. Lcate the return duct in the center of the home. Install ducts. Install the appropriate supply and retUr tween the remote unit and the home (Figure 88) mak the instructions for crossover ducts in Crossover Cos Install dampers. If installing a remote cooling unit in stalled furnace, install dampers between the furnace system, and between the remote unit and the home's warm air in heating mode from escaping to the remot sa. ducts (not provided) be- ig connections according to nections (p. 49). home with a factory in- nd the home's air duct sir duct system to prevent cooling unit and vice ver- Figure 86. Whole house ventilation flex duct in an electric down -flow furnace. From left to right. as pre- pared in the factory; proper installation with A -coil, im- proper installation with A -coil // Selecting A -coils. Use only A -coil units compatible and listed for use with the fur- nace in the home and in- stalled in accordance with the furnace manufacturer's instructions. Installing flue stacks with a hinged roof. If flue stack components are installed above the finish roof line (as is often the case with hinged roofs), an Alterna- tive Construction letter is required along with a fol- low-up inspection. Contact the factory for guidance. Venting appliances to the outside. Vent to the exteri- or of the home all combus- tion appliances except ranges and ovens. Selecting ducts. Exterior ductwork for remote units must be provided by the in- staller or HVAC contractor. Ducts must be approved for exterior installation and should be wrapped with in- sulation of at least R-8 un- der a vapor barrier with a perm rating of not greater than one. (For ENERGY STAR homes, the R-value must be at least that speci- fied on the manufacturer's ENERGY STAR Site Instal- lation Checklist —generally a minimum of R-8.) 80 Manufacturer's Installation Manual - June 2015 Furnace Home I 4. Connect wiring. Install a thermostat containing a fan switch. Connect utilities in accordance with all manufacturer's instructions and local codes. 5. Seal penetrations. Repair or replace all floor insulation disturbed during the duct installation and seal holes in the bottom board using foam, mastic, or tape specially made for that1purpose. I i Air Conditioning or Heating Equipment Supply 1 Marriage Supply Return Duct Line Duct I Duct n Support Straps at y \---SupportBlock 48" in. O.C. Minimum 1 Minimum Clearance Between Ducts and Ground to be4 in. 1 PREPARE VENTILATION SYSTEM Prepare the whole -house ventilation system according to the ventilation system manufac- turer's instructions. Confirm that any fresh air intake ducts extend to the exterior and do not draw air from the crawlspace under the home. Do not allow any fresh air ventilation intake ducts to become kinked or restricted, forming a trap (Figure 86). PREPARE FUEL -BURNING WATER HEATER The water heater discharge and drip pan drains should have been installed in Connect Utilities (p.75). In homes with direct -vent water heaters (that utilize gas, oil, or other combustion fuel), and where the water heater is not independently vented to the exterior through a grilled opening, provide combustion' air from under the floor using pipe and cement acceptable to the appliance manufacturer or through the roof via a double -walled flue pipe. If provid- ed through the floor, run the; air piping to the exterior of the home, with supports spaced every 3-1/2 feet o.c. or less. Terminate the pipe facing downward a minimum of 12 inches above the ground surface and provide a screen on the pipe vent cap. Figure 87. -Remote unit damper locations Figure 88. Ducts connecting exterior heating and/or cool- ing equipment to the home Choosing pipe lengths. The appliance manufacturer may designate the length of the pipe run based on the pipe di- ameter and the number of turns in the pipe run. M�Nar�cru�eoaeunruur Manufacturer's Installation Manual - June 2015 81 INSTALL EVAPORATIVE COOLER OPTION Install evaporative coolers (also known as swamp coolers) as follows: I 1. Check suitability. Check the home's Comfort Cooling Certificate (may be included with the data plate) to confirm that the home is suitable for the installation of an evaporative cooler and if so, any equipment sizing guidance provided by the manu- facturer. Only install a roof mounted unit�if the manufacturer has provided the home with a platform and electrical supply intended for this use. 2. Select equipment. Select a unit with a maximum blower capacity of 500 CFM. If the unit will be roof mounted, choose one `with a maximum operational weight (in- cluding water) of 220 lbs. II 3. Install. To install the unit, follow the manufacturer's instructions complying with the requirements of the cooler's listing, all applicable local jurisdiction regulations and the requirements in this manual, whichever is more restrictive. 4. Secure roof -mounted cooler. To eliminate,potential leaks with roof -mounted coolers, route guy wires over the side of the home and attach them to roof truss edge rails, rather than the roof itself. Do not attach guy wires to roof vents, flues, or other items protruding from the roof. 5. Install air supply. For roof -mounted units, install ceiling discharge grills no closer than three feet from a smoke alarm. For grour d-mounted units, install ducts below the bottom board, with the exception of vertical risers into registers. Follow.all ap- plicable crossover duct installation instructions (Connect Crossovers, STEP 1. CONNECT DUCTS, p. 49) when installing an uder floor duct system to make ducts airtight. 6. Seal penetrations. To prevent water and air leakage into the home, take the follow- ing steps: For roof mounted units, seal all fastener penetrations, roof penetrations and the boot connecting the cooler to the roof opening. For ground -mounted coolers; seal the bottom board where it is penetrated by vertical risers using foam, mastic and/or tape specially made for that purpose. yI 7. Connect water supply. Connect the cooler to an external water supply and attach an overflow hose to the accumulation pan. Route overflow water away from the home. 8. Connect wiring. Using wire nuts, connect the wires from a junction box (Figure 89) to the cooler and replace the cover on the box. �nstall coolers rated at 16 AMPS on a 20 AMP circuit and coolers rated at 12 AMPS max on a 15 AMP max circuit. Use one junction box per cooler and the folloWng color codes for assigning wires: i • White = Neutral • Yellow = Pump • Black = Low Fan • Red = High Fan • Green = Ground Figure 89. Roof mounted junction box 82 Manufacturer's Installation Manual - June 2015 CHAMPION` PREPARE CLOTHES DRYER DRYER VENTS If the home includes a clothes dryer, the components for ventilating the dryer are included with the home (but not necessarily installed) and a vent opening has been roughed in either in the wall or floor. (If a dryer is not installed, seal fall dryer vent openings). Run the dryer vent to the outside through the exterior wall or through the floor to a point beyond the perimeter of the home, using material s approved by the clothes dryer manufac- turer (see Figure 90). Vent Below Floor Wall Clampto Vent Cap Dryer Cap Install the vent as follows: i I Elbow With Riaid Duct Board I Elbow With Rigid D uct Support Strap I Rigid or Flex!Duct Would Frame Secured to Bottom of Rim Plateor Install Through Skirting Vent Through Exterior Wall Clampto Vent( Dryer Cap Connection uct I 1. Remove temporary caps. Remove any temporary seals and duct caps from the vent rough openings. 2. Install ductwork. Install ductwork using clamps (do not use screws or other fasteners that penetrate into the duct) and support the duct with metal straps connected to the floor joists or chassis at two feet D.C. or less. Ensure duct connections are internally overlapped to prevent inhibiting the flow of air and thereby causing lint accumulation. 3. Install cap and damper. Install an approved dryer vent cap with damper on the exterior termination of the duct. If the vent terminates at skirting, secure the cap to framing or skirting with sheet metal screws and seal edges with caulk or sealant. If the vent terminates through a wall, apply a bead of sealant to the back of the cap around the opening and secure with sheet metal screws to metal, hardboard or fiber cement siding or with wood screws to a mount block for vinyl siding. 4. Seal opening. Seal openings inside and outside of the home including at the floor, interior walls, siding and skirting (with caulk), and at the bottom board using foam, mastic and/or tape specially made for that purpose. GAS DRYERS If the home was not fitted for a gas dryer, installing one requires substantial alteration to the home. Gas supply piping and adequate venting must be provided as specified by the dryer manufacturer and installed by a trained professional. Do not cut major struc- tural elements to accommodate a gas dryer. i! iA Venting exhaust systems. Exhaust vents must extend to the home's exterior through skirting. Termination of the dryer exhaust under- neath the home can cause condensation and moisture damage to the home. Lint and dust accumulation can ignite, causing a fire. The exhaust system must not contain reverse slope. Figure 90. Clothes dryer ventilation ductwork through floor (left) or exterior wall (right) i Ibrzz Avoid damaging structural elements. Do not cut or otherwise damage structur- al elements such as floor joists or wall studs for the installation of the dryer ex- haust system. Gas. Ventilation components that may be included with the home for an electric dryer may not be accepta- ble for gas dryers. Consult the gas dryer manufacturer instructions. Installing ducts. Keep ductwork straight and smooth as possible without excess slack. Slope it slightly downward towards the exterior to facilitate moisture drainage. Manufacturer's Installation Manual - June 2015 83 PREPARE SMOKE ALARMS The home has several factory installed smoke alarms that are wired to a 120-volt cir- cuit. If the home was designed for placement'r a basement, an additional alarm is provided for installation at a pre -wired location under the home. Connect the basement smoke alarm and test all alarms as follows: I 1. Check circuit. Ensure that electrical 1power to the home is activated and that the smoke alarm circuit is on. 2. Remove batteries. Make sure backup batteries (if any) are removed from all smoke alarms. 3. Test alarms. Press the test button on each alarm sequentially. All alarms should sound simultaneously when the test button on any one smoke alarm is pressed. Replace (with the same brand as those installed elsewhere in the home) any alarms that do not sound and retest. 4. Replace batteries. After successful test, replace the backup batteries, dis- carding the protective tabs. I PREPARE FIREPLACES Install chimneys, chimney flashing and roofing, hearths according to the manufacturer's instruc low. CHIMNEYS Fireplace and wood stoves may require on -site insta proved chimney pipe, a spark arrestor, and a rain ca turer's instructions and the procedures described bel 1. Remove coverings. Remove protective mks and any foreign material from the installed K 2. Install chimney pipe. Assemble and seal tl wood stove manufacturer's installation instr tween the instructions and the figure, follow cient draft for proper operation, extend the c the highest point where it penetrates the roc any surface within 10 feet of the chimney (F tion(s) of chimney pipe (not provided) 1f regi has obstructions within 10 feet of the chimn ace combustion air inlets, and and the procedures described be- Ilation of additional sections of ap- p assembly. Follow the manufac- trials covering the roof flashing rt of the chimney. chimney per the fireplace or otions and if there is a conflict be- ie instructions. To assure suffi- imney at least three feet above and at least two feet higher than lure 92). Use additional sec- ed by local code or if the site 84 Manufacturer's Installation Manual - June 2015 w ITT 4T.r.� A oof Top Asserttty �— j in Cap I r_� Spark Arrestr Chimney Cap AdVa X Min. Triple Wall Ppe Storm Cola Roof Hekjt —� Flashing Firestop Thhtle Less�Than,10' I J t"Min. z' Above nov Lwel I 3' 3. Install shingles. Install shingles up to the edge of the flue cut-out in the roof deck. Secure shingles installed under the roof flashing with asphalt cement. 4. Install flashing. Place flashing over pipe section and shingles and set in as- phalt cement. Secure flashing to roof deck at top two corners with roofing nails. 5. Complete shingles. Cut shingles in successive courses to fit around the pipe and embed them in asphalt cement where they overlap the flashing. Secure shingles with roofing nails through flashing and apply asphalt cement over nail heads. The completed installation should appear as shown in Figure 93, with the lower part of the flange overlapping the lower shingles and the side and upper shingles overlapping the flange. Figure 91. Chimney and combustion air intake duct installation V,rtb!rzz, Selecting the appropriate flue. Wood fireplaces use larger diameter flues than gas fireplaces. Make sure flue matches the appliance type. Gas fireplaces cannot burn wood because the flue is too small and smoke will back up into the home. If wood fireplaces are con- verted to gas the flue will be too large resulting in ex- cessive heat loss through the chimney. Figure 92. Chimney clear- ance MnNur�atattp ttnarpuur Manufacturer's Installation Manual - June 2015 85 Push Doom :ni Storm Collar Upper and Side Roof Shingles Shingles Overlap Flange Flange and Are Set In Asphalt Cement I Flue Pipe i Metal Lower Part of Flange Trim With Sheet VMTOverlaps Lower Shingle Sheers If Difficult To Make Flashing lay Flat On Roof COMBUSTION AIR INLETS Combustion air inlets provide combustion air through the floor or an exterior wall to a combustion appliance. If through an exterior wall,�site installation is not required. If through the floor, extend the duct from its point just below the floor to the outside (addi- tional duct material required for this shall be provided with the home). Locate the inlet damper above expected snow levels (contact the L AHJ for snow levels). Follow the fireplace manufacturer's instructions (typically in the fireplace/stove or with the chimney parts). HEARTHS If shipped loose, install the fireplace hearth according to the fireplace manufacturer's instructions. I PREPARE KITCHEN AND BATH APPLIANCES / FIXTURES Install kitchen and bath appliances according to the manufacturer's instructions and the procedures described for each appliance below. COOKING APPLIANCES If the home is provided with a range, cook top and/or grill�containing its own exhaust system that penetrates the floor, complete the exhaust system as follows: 1. Remove covers. Remove the cover on the factory -installed exhaust pipe pro- truding from beneath the floor near the appliance! 2. Install termination fitting. Secure the provided termination fitting at the outside edge of the floor. 3. Install duct. Use the provided flexible metallic duct to connect the elbow pro- truding from the floor and the termination fitting. Refer to the manufacturer's installation instructions for guidance on supporting �he duct and making the connections. SITE -INSTALLED GAS APPLIANCES Install only appliances with a Btu capacity equivalent to or less than the capacity of the factory -installed piping and at the location of a factory -installed gas riser. REFRIGERATOR Prepare the refrigerator as follows: I r • Remove straps, blocks, or other securement devices Used for shipping and patch any resulting marks on floors or walls. • If the refrigerator has an icemaker, check water lines for leaks upon installa- tion and a few days later to make sure no leaks have d eloped. SITE -INSTALLED APPLIANCES AND FIXTURES If sinks, tubs, showers or other fixtures or appliances are to be site -installed, follow the manufacturer's installation instructions. Use only products listed for use in manufac- tured homes and follow all applicable local codes. I Figure 93. Roof flashing and shingle installation around chimney V&IrZZA Installing combustion air inlets. Do not install the combustion air inlet such that material from the hearth can drop beneath the home. V&POZZA Installing exhaust ducts. Route exhaust ducts so they do not terminate be- neath the home. Manufacturer's Installation Manual - June 2015 CHAMPION' INSTALL EXTERIOR LIGHTING Install exterior lighting according to Figure 94 and the following: 1. Remove cover. Remove the screws an d cover from electrical junction box. 2. Install flash ring. Place the non-combustible flash ring over the junction box. 3. Connect wires. Connect fixture wires to house wires in the box, black to black, white to white, and equipment ground to equipment ground, using listed wire connectors. Push wires into the box. 4. Connect fixtures. Connect the fixture to the junction box or strap using screws provided with the light fixture. i 5. Weatherproof. Weatherproof/caulk around the base of the fixture, leaving a small gap in the caulking on the bottom to permit drainage of water that may accumulate. 6. Complete installation. Install bulb and globe on the fixture and verify proper operation. i Wire From S ith I Nan-CombustibleRig Wire From Wire (If Requiaf) Wire Nut I ll=h (Typl (TYPMD I Fixture Cary/ i � rou hi' la la I �I I I /� Globe i Pigtail for Ground Corti* Junction Bar J Wire to Other Fbire I INSTALL CEILING FANS/LIGHTS Install ceiling fans no closer than 36 inches to a smoke alarm, measured from the end of the fan blade to the edge of the alarm and with the trailing edges of the blades at least six feet -four inches above the finished floor. Comply with all unit manufacturers' instructions and the requirements below. CEILING FAN/LIGHT MOUNTED TO' FACTORY -INSTALLED ELECTRICAL BOX IN CEILING ' Before installing the unit, make sure that adequate structural bracing is present in the ceiling. If uncertain, check with the manufacturer. Follow the fan or light manufacturer's instructions to connect the unit and complete the wiring. If the instructions are not available, connect the wiring as shown in Figure 95. Ground Wire Color Codea ftR WiresGrowStrap Wire Nuteilir Ceiling Box Mounting umnao or Noncombustible Ring (If Required) ZA &IO Lighting installation. A qualified electrician should install lighting. Before con- necting lighting, disconnect power to the lighting circuit. Ground all exterior light fix- tures. Using a non-combustible ring. Install a non- combustible ring completely covering any combustible surfaces the fixtures may be mounted on (e.g. hard- board, clad wood and vinyl siding), or when ceiling ma- terial is exposed between the light fixture canopy and the junction box. Figure 94. Exterior lighting connection Installing ceiling fans. A qualified electrician should install lighting and fans. Be- fore connecting the ceiling fan or light, disconnect power to the fan wires. Any unit installed outside of the home (such as in a porch ceiling) shall be listed for wet locations. Figure 95. Wiring for a ceil- ing fan or chain -hung light fixture with a maximum weight of 35 lbs ' • M...Wru.r„e,,erae„Y. Manufacturer's Installation Manual - June 2015 87 TEST ELECTRICAL SYSTEM After completion of all electrical wiring and c ances, lights, and ceiling fans, inspect and t 1. Fill water heater. Fill water heater switching on the circuit breaker. 2. 9 4. sections, including crossovers, appli- the electrical system as follows: ore turning on power to the home or Test continuity. Before turning on the an electrical continuity test to ensure tt and the chassis are effectively bonded Test operation. After turning on the el operational tests of all devices (except furnaces, dishwashers, clothes washes demonstrate that they are connected a Test polarity. After turning on the elec trical polarity checks to determine that stalled or completed during installation fication is an acceptable electrical pola electrical power to the home, conduct at exposed metallic parts of the home 1,ctrical power to the home, conduct water heaters, electric ranges, electric s/dryers, and portable appliances) to nd in working order. trical power to the home, conduct elec- .onnections of electrical equipment in - have been made properly. Visual veri- -itv check. i! ii Choosing ceiling fan junc- tion boxes. Connect ceil- ing fans only to junction boxes listed and marked for ceiling fan application in accordance with Article 314.27(b) of 2005 NEC. Always ground metal junc- tion boxes. Selecting fan weight. Do not use any ceiling fans or light fixtures that exceed the weight rating of the box (35 Ibs unless otherwise noted). Grounding electrical de- vices. Ground fans/lights using a fixture -grounding device or a fixture - grounding wire as specified in the manufacturer's in- structions. Manufacturer's Installation Manual - June 2015 M�wur�cru�eo �eeuT•uur Complete Exterior Work This chapter covers sealing the bottom board, and completing site -built structures. the ground cover and skirting, preparing wind protection shutters, STEP 1. REPAIR AND SEAL BOTTOM BOARD Tears and openings in the bottom board can result from transportation or installation activities. Inspect for holes and gaps across the entire bottom board, especially areas around service penetrations, crossover connections, pipe and duct hangers, foundation elements, and the perimeter of the floor. iUsing approved materials appropriate for the Sealing ng bottom boards. Acon- s and sealed bottom tinboard type of repair, repair the bottom board wherever torn or loosened as follows: 1. Insulate. Replace any missingf insulation to closure and the bot- is critical for home per- prior repair of formance, energy efficiency, tom board, paying particular attention to insulation gaps that may have been protection against moisture created at P-traps. �ir problems, prevention of pipe 2. Repair large openings. Replarge openings with a durable patch made of freezing, and protection against bottom board fabric or other compatible material and fastened with vinyl bot- insects and rodents. tom board tape held in placeiby fasteners installed with a divergent stapler. Bottom board sealing meth - Seal the edges around patches with foam or mastic. For large openings, in- stall a rigid backer board behind the bottom board to provide a fastening sub- ods. Tapes shall never be used strate for the patch. i alone to repair a bottom board. Divergent staples or mastic 3. Repair small openings. Repair small gaps and tears with a combination of must be used in tandem with vinyl bottom board tape, patches, mastic, or foam sealant. tape to prevent future tear off. Alternate materials may be used to repair and seal the bottom board provided Fastening vinyl siding. Do not they are appropriate for the type of repair and installed per the manufacturer's install fasteners directly into vi- installation instructions. ! nyl siding. Allow for siding ther- mal expansion by pre -drilling STEP 2. INSTALL GROUND MOISTURE RETARDER minimum 1/2 inch diameter fas- If the space under the home is to be enclosed with skirting or other materials, a ground moisture retarder of a minimum six mil thick polyethylene sheeting or equivalent must toner holes or fastening skirting to ledger under the home (see be installed covering the ground rider the home. Moisture retarders are not required in u Bess t Practice tip). and regions (less than 15 inchesjof rainfall annually) with dry soil conditions. If on - grade (surface) footings are used, install the ground moisture retarder prior to placing the footings, or install it around the footings after all other work under the home is com- plete. + Install the ground moisture retarder as follows: Avoiding radon. For enclosed perimeter wall 1. Apply sheeting. Unroll Ithe ground moisture overlapping joints in the sheeting a crawlspace foundations in minimum of 12 inches and covering the entire area under the home except for areas where radon is com- areas under recessed entries, decks, and porches. monly found in the soil, 2. Weigh down. To keep, the retarder in place, weigh it down with stones, concrete continue the moisture re - tarder up the perimeter wall blocks, or other heavy; durable materials. at least 12 inches, sealing 3. Repair tears. Repair any large voids or tears in the retarder by patching with the edges and between the like material, maintain+ing a minimum 12 inch overlap, secured with tape or ad- seams with mastic. hesive. Repair small voids and tears with tape, adhesive or per manufacturer's installation instructions. MANUMC _-IlAUfI/UIIT• Manufacturer's Installation Manual -June 2015 89 STEP 3. INSTALL SKIRTINGI Skirting is any structural or non-structural perimeter crawlspace enclosure. Complete site -built structures (see STEP 5. COMPLETE SITE -BUILT STRUCTURES, p.92) that abut the home (such as porches, attached garages, and steps) prior to installing skirting TABLE 28. SKIRTING MATERIALS SPECIFICATIONS Skirting must be of weather -resistant materials or provided with protection against weather deterioration at least equivalent to that provided by a coat- ing of zinc on steel of not less than 0.30 oz per sq ft of surface coated. Skirting made from wood or wood products and used within six inches of the ground needs to be made ofimaterials naturally resistant to decay and termite infestation or pressure -treated. Ventilation openings must be covered for their full height and width with a perforated (1/4 inch maximum opening in any dimension) corrosion and weather -resistant covering that is designed to prevent the entry of rodents. In areas subject to freezing, the -coverings for the ventilation openings must have an operable damper, permitting them to be in the open or closed posi- tion depending on the weather. 1 To design and install skirting, comply with the skirting manufacturer's instructions (if provided) and the following: 1. Configure skirting. Run the skirting along the perimeter of the home's heated, conditioned space (Figure 96). Do not enclose 'with skirting areas under recessed entries, porches, or decks (whether constructediias part of the home or added on site) unless skirting is of the fully vented type and installed so as to allow water to freely flow out from under the home. 2. Fasten skirting. Recess the skirting under the siding or trim and attach it to the home in a manner that prevents water from being trapped between the siding or trim and the skirting. For wood, aluminum, or fiber'glass skirting, install a skirt rail (lumber strip) under the floor inset at least 1-1/2 inches from the edge of the siding for attachment of the skirting. Allow for frost heave when installing skirting in areas subject to frost. 3. Provide ventilation. Unless the skirting has integral ventilation openings that meet the following ventilation requirements, install equally sized ventilation openings on at least two opposite sides of the foundation. Size ventilation area to equal at least one square foot for each 150 square feet of under -floor area (or for each 1,500 square feet if a ground moisture retarder is installed according to STEP 2. INSTALL GROUND MOISTURE RETARDER, p. 89). Place vents as high above the ground as practical. 4. Install access. Provide an access opening not less than 18 inches wide and 24 inches high and located so that any utility connections located under the home are accessible. 5. Extend vents, drains, and inlets. Run appliance exhaust vents, combustion air in- lets, and air conditioner condensation drains through the skirting to the outside and terminate each as instructed in the sections of this manual corresponding to each appliance. Beam Pocket Detail -------------- -------------------------- Perimeter Beam Pocket / Skirting width 5" Porch depth = beam depth Frame Beam Skirting' Attaching vinyl siding. To install skirting on vinyl -sided homes, screw a treated 2 x 4 on edge to the underside of the floor joists two inches back from the edge of the home. Screw skirting tight to the 2 x 4. V&r+#Z1ZA Avoid backfilling against skirting. Do not backfill against non-structural skirting. Figure 96. Perimeter skirt- ing at recessed entries, porches, and decks 90 Manufacturer's Installation Manual - June 2015 • 4• MANUFACTURED BEAUTIFULLY` STEP 4. ASSEMBLE OPTIONAL WIND PROTECTION SHUTTERS If desired, prepare temporary protective window covers for use during. severe wind storms and hurricanes according to Figure 97, 4abie 29, and the procedure below. 1. Assemble extension framing using two' 0.131" x 3'/4" nails at each connection. 2. Assemble shutter panels as shown in�,Figure 97. 3. Store the shutters such that they are protected from the weather, are not in di- rect contact with the ground, and are easily accessible by the homeowner. To attach shutters to the home: 1. Fasten extension framing to wall framing members with #8 x 3" screws, per Table 29. 2. Fasten assembled panel(s) to extension framing with #8 x 2" screws, per Table 29. I Wdth Cut If Des -re - Extension IIII IIIIIIII pq Framing#3 dSPworsGrae IIII III St1i' 2x3 Minimum Secure OSB or Plywood to Studding Wth #8 x 2" Screws at 6" O.C. 2x4 #2 SPF Studding, Required When Plywood or OSS Used Is Y2" or Less In Thickness TABLE 29. SHUTTER CONSTRUCTION SPECIFICATIONS vvnlu /-ones z a, o Panel Extension thickness Window Ext Fastening to extension width framing (in) #8 xx 2"scr"screws Up to 48" Up to 72" * 2 x 3 perimeter extension with 2 x 4 studding at 16 inches o.c 16 in. o.c. 16 in. o.c. 8 in. o.c. Figure 97. Wind protection shutter construction PHILLIP J. ENGINEER 0N 32035 03 aonal oNca � June 1, 2015 12 in. o.c. 12 in. o.c. 8 in. o.c. r mnnur.c,axea eenu,iru,„- Manufacturer's Installation Manual - June 2015 91 STEP 5. COMPLETE SITE -SPILT STRUCTURES Install site -built structures such as steps, landings, garages, awnings, carports, breezeways, porches, decks, railings, sheds, and utility rooms according to manufac- turer's instructions (if any), in compliance with all local regulations including fire separa- tion and electrical requirements, and according to the following: • Do not obstruct any of the two required exit doors or egress windows from the home. • Construct site -built structures to be s for in the design of the home (instruc er). • Do not damage the integrity of the he tem. Seal any weatherproofing Conn( and the home and flash any roof con • Utilize only GFCI outlets for site -built • Install and test smoke alarms in any code. irally independent unless provided will be provided by the manufactur- s structural or weatherproofing sys- ns between the site -built structure structures according to local • The home's mechanical system has been designed for the home itself and does not consider the heating or cooling of the addition. • The addition must meet all local codes, including site work and fire separation requirements. The manufacturer does not accept any responsibility for the addtion's design. • The home with an addition must be in, conformance with the HUD Manufac- tureed Housing Code, such as exiting, light and vent, etc. The addition must be approved by the jurisdiction having authority. • Site Work shall be consistent with the objectives of site grading as described in Prepare the Site. • The manufacturer will not honor the warranty for any problem that relates to the construction of the addition (leak problems etc.) • A dormer roof can be installed on the home to match the pitch of the addi- tions's roof. The shingles below the dormer must be removed and the dormer must be vented properly. The dormer weight shall be no more than 5 psf and distributed uniformly over the roof trusses of the home. Connections may be made to attach the dormer to the home, but not be used to support the roofs loads of the addition. The dormer shall be shingled, flashed and sealed properly to prevent leaks (follow shingle manufacturer's instructions and ARMA guidelines for shingle valley applications). The manufacturer is provid- ing the above information as an accommodation only and without considera- tion. Accordingly, by this letter the manufacturer extends no warranties or rep- resentation either expressed or implied with regard Ito the recommendations here -in. I i&AZZA Designing site -built struc- tures. All site -built structures must support their own dead, live, and wind loads and must not transmit any loads to the home's structure. All carports should be freestanding. 92 Manufacturer's Installation Manual - June 2015 • ' • MANUFACTURED BEAUTIFULLY' repare RoMeTor Occupancy Follow these steps for final inspection and completion of the home. STEP 1. VERIFY ALTERNATIVE CONSTRUCTION (AC) INSPECTION (p. 93) STEP 2. COMPLETE INSPECTION CHECKLIST (p. 93) STEP 3. COMPLETE ENERGY STAR CHECKLIST (p. 93) STEP 4. CLEAN THE HOME (p. 93) STEP 1. VERIFY ALTERNATIVE CONSTRUCTION (AC) INSPECTION This is normally the responsibility of the retailer and the manufacturer, however, the in- stallation is not complete until the alternative construction inspection has been passed and documented. STEP 2. COMPLETE INSPECTION CHECKLIST After all previous steps have been accomplished, inspect the home to verify that it has been completely and properly installed using the checklist starting on p. 94. Correct any deficiencies found, if possible, or if not possible, inform the retailer or man- ufacturer immediately. j' STEP 3. COMPLETE,ENERGY STAR CHECKLIST For ENERGY STAR qualified homes (check with the retailer or manufacturer), this step is to be completed by the manufacturer's designated representative. Ask the retailer or the manufacturer who this is. j' The manufacturer's representative must complete the Energy Star Site Installation Checklist, obtain signatures on the ENERGY STAR label, and return the completed ENERGY STAR Site Installation Checklist to the manufacturing plant. STEP 4. CLEAN THE HOME Remove and properly dispose of all installation -generated dust, debris, and packaging materials from the home and the surrounding property. Ensure that the home is in "move -in" condition. FFACTURED!EAUTIFULLY' Manufacturer's Installation Manual - June 2015 93 Complete Installation Checklist Use this checklist to confirm that the listed aspects of the installation are complete and correct. i FOUNDATION 1 El' // Footings properly sized and constructed for the soil conditions � ❑ Pier spacing per data plate and applicable table and roof load zone Limits of the checklist. This ❑ Piers properly constructed and vertical checklist is not all-inclusive. ❑ Perimeter blocking installed (if required) Some homes have im- portant features not listed ❑ Piers at each side of large sidewall openings here. Completing this ❑ Center line piers installed at columns checklist does not guaran- tee that all installation re - Shims in place and tight quirements have been met. ANCHORS ❑ Approved anchors are used After relocating home. Any home that has been re El Anchors are installed at correct angles installed after its original in - El Anchor spacing and installation correct stallation should be in- spected spected after it is set up, in Longitudinal ties installed 9 order to assure that it has ❑ Anchor straps are tensioned not been damaged and is properly installed. UNDER THE HOME ❑ Moisture retarder installed ❑ The ground is properly graded to prevent water accumulation ❑ HVAC ducts are supported off the ground and connected tightly to collars at all ends ❑ Fireplace combustion air intake free and unrestricted 1 ❑ No holes or tears in bottom board 11 ❑ Skirting has been installed per manufacturer's instruction's with proper venting and provision for frost heave ❑ Dryer vent, range/cook top exhaust, water heater temperature and pressure overflov pipe (when home is set over full basement or enclosed crawl space) and AC con- densate drain installed to perimeter of crawl space EXTERIOR ❑ Shingled roofs are free of visible damage and serious defects and there are no missing or loose shingles ❑ Shingle close-up and ridge cap have been completed per appli; able details ❑ All hold down straps on shingled roofs have been removed and, staple holes have been properly sealed ❑ Penetrations at roof stacks, vents and chimneys have been properly sealed ❑ Siding and trim is free of gaps, voids, missing fasteners, damage;, and serious defects. All seams are sealed and hardboard edges are sealed ❑ Drip edge and fascia is properly installed and free of damage and serious defects ❑ Gutters and downspouts are installed properly such that water is diverted away from the home ❑ Trees and bushes have been trimmed to prevent brushing against t6p home in windy conditions or under snow loads ❑ The HUD label is exposed, intact and legible • 94 Manufacturer's Installation Manual - June�2015 ❑ The exterior of the home and immediate su materials, dust, and debris INTERIOR ❑ Ceilings, walls, and floor coverings are f ❑ Carpeting is properly stretched and sear ❑ All trim and molding is installed properly ❑ All cabinets, countertops, plumbing fixtui I coverings are free of damage or serious All cabinet doors and drawers work Droc is clean, clear of construction from damage and serious defects free of damage and defects appliances, furnishings, and window All interior and exterior doors and windows open, close, and latch properly One window in each bedroom meets emergency egress requirements, has operating instruction labels on it, and operates properly All temporary shipping hardware has been removed Floors are level The data plate is intact and legible Smoke alarms have been tested The interior of the home is clean, clear of materials, dust, and debris WATER AND DRAIN SYSTEMS ❑ Crossover and service connection;and splices have been properly made with correct materials ❑ Water and drain lines are insulated or otherwise protected from freezing ❑ Pipe supports are installed and properly spaced ❑ Proper slope has been maintained on all drain lines ❑ All necessary inspections and tests have been performed ❑ All sinks, basins, tubs, and toilets operate properly ❑ All hot and cold water lines are properly connected to fixtures, dispense water as labeled, and operate properly; ❑ Tub, tub/shower and shower outlets have been verified to ensure the outlet hot water temperature does not exceed 120°F (49°C) ELECTRICAL SYSTEMS ❑ The panel amperage matches the connection to the home Q The home has been properly grounded ❑ The main power supply has been properly connected and tested by a licensed electrician ❑ All electrical crossovers have been connected ❑ All receptacles, switches, and light fixtures operate properly ❑ Ground fault circuit interrupters operate properly ❑ All exterior lights have been properly installed GAS/FUEL OIL SYSTEMS ❑ The gas system pressure test has been conducted ❑ Connections between units are properly made with access as required ❑ The main fuel line has been properly connected and tested by a qualified technician APPLIANCE OPERATING AND VENTING ❑ All appliances are working properly ❑ Appliance venting is in accordance with the manufacturer's instructions ❑ Fresh air intakes are properly installed ❑ Whole house, kitchen, and bath exhaust fan operation are correct ❑ Fireplace chimney stack extension and roof cap have been installed in accordance with the manufacturer's instructions ❑ Air conditioner/heat pump is sized properly Manufacturer's Installation Manual - June 2015 95 MISCELLANEOUS ❑ Installation/anchoring certificates or seals have been issued and installed (if required) ❑ Owner's and operation manuals are available for all appliances ❑ This installation manual is left with home 96 Manufacturer's Installation Manual- June 2015 „y 3401 W. Corsicana Street 2073 Evergreen Street 951 Route 12 South Athens, TX 75751 Dresden, TN 38225 Sangerfield, NY 13455 903-677-0108 800-530-7335 1 731-364-4600 800-937-391 1 1 315-841-41 501 S. Burleson Blvd. 101 Garden Spot Road 308 Sheridan Drive Burleson, TX 76028 Ephrata, PA 17522-0428 Topeka, IN 46571 800-414-2605 1 81 7-572-1341 800-733-6267 1 717-733-7941 800-777-6637 1 260-593-29 6420 West Allison Road 1915 SE State Road 100 PO Box 190, 1425 Sunnyside Chandler, AZ 85226 Lake City, FL 32025 Wesier, ID 83672 877-738-8838 1 520-796-4300 800-223-5471 1 386-755-3073 877-540-4906 1 208-54.9-14 2551 Champion Drive 4055 Highway 401 South 1660 Rowe Avenue Claysburg, PA 16625 Lillington, NC 27546 Worthington, MN 56187 800-932-5121 1 814-239-5121 800-428-9182 1 910-893-5713 507-376-9460 299 N Smith Avenue 840 Palm Avenue 3200 Enterprise Avenue Corona, CA 92880 Lindsay, CA 93247 York, NE 68467 951-734-6610 559-562-4951 1 800-451-4951 800-752-7906 1 402-362 CORPORATE OFFICE: Champion Home Builders, Inc. • 755 West Big Beaver Road Suite 1000 Troy, MI 48084 MANUFACTURED BEAUTIFULLY'm 248.614.8200 www.championhomes.com Dutch -) Housing 11%k R E DMA N A(I H OM -1 HIGHLAND" MANUFACTURING M11 A7HENS HOMES OF MERIT �G�Gi�P/1i%//� PARK HOMES. TTITAN° FORTUNE HOMESS ® ■ HOMES ATLANTIC e)"11"; Copyright June 2015 by Champ All Rights Reserved.