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Home My WebLink AboutMobile Home Installation Manualk. ---------- N. pw—y� ol P IA Copyright 2018 by Chadotligle Aucius Using the Manual This manual is organized into a series of steps that will take you through the at required for the specific home being installed. First, review the entire manual, i identify sections of the manual that you will need; identify other documents or i and materials required for your particular installation; and make sure you have After reviewing the entire manual, refer to the sequence of installation steps in installation and follow the arrows downward. Select either Single Section Hot umn corresponding to the home's foundation type, either Pier and Ground Ar initions, p. 4), Then complete the work in each of the sections starting with Gr e installation process using only those pages uding the Introduction chapter. As you read it, rmation you will need; construct lists of tools erything you need before starting work. table below. Identify the pathway for your or a Multi -Section Home and choose the col- or or Load -Bearing Perimeter Wall\(see Def- no Started. If using an alternative (proprietary) foundation system, the installation process v(ill change from that described in this manual. Consult the system manufacturer directions for instructions. See page 6 for alternative foundation system criteria. Disclaimer The Manufactured Housing Research Alliance, its members, consultants, contractors or guarantee, express or implied, as to the accuracy or appropriateness of any mater home, nor assume any liability for the use of the information, methods, or materials o use. Copyright © 2008 Manufactured Housing Research Alliance representatives make no representations, warranty )r information in this manual for use in a specific ned herein, or for damages arising from any such ISSN 1529-3424 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) 70&6423 or (800) 927-2891 FAX: (202)708-4213 State Administrative Agencies A list of SAAs may be found on the web www hi nnvnnv or by contacting tured Housing. FEDERAL PREEMPTION This home was engineered, constructed, and Inspected in conformance wit tion and Safety Standards of the US Department of Housing and Urban De ferred to as the "HUD Code") in effect on the date of manufacture. These S the design and construction of manufactured homes designed to be used a Individual states, counties and cities shall have no authority to establish ste a manufactured home. A metal certification label is affixed to each section i strutted and inspected to comply with these Standards. The design plans e spected by independent third party agencies to assure compliance with the The installation of the home and any alterations made to the home shall cc Manufactured Home Construction and Safety Standards and the HUD Moc These installation instructions are minimum requirements. Applicable local tion requirements than outlined in this manual and must be followed. Consi (LAHJ) for regulations that may require licenses and/or permits or which m Office of Regulatory Affairs and Manufac- the Federal Manufactured Home Construc- :lopment (24 CFR Part 3280, commonly re- ndards set forth minimum requirements for dwellings. lards regarding the construction or safety of the home to certify that it has been con- d in -plant construction of all homes are in- onn to the requirements of the Federal Manufactured Home Installation Standards. state laws may have more stringent installa- with the local authority having jurisdiction affect procedures described in this manual. DEFINITIONS ANCHOR ASSEMBLY. Any device or other means designed to transfer loatls to the ground. ANCHORING EQUIPMENT. Ties, straps, cables, turnbuckles, chains, and gther approved components, including tension- ing devices that are used to secure a manufactured home to anchor assemblies. i ANCHORING SYSTEM. A combination of anchoring equipment and anchortassemblies that will, when properly designed and installed, resist the uplift, overturning, and lateral forces on the manufactured home. BASEMENT. A load -bearing perimeter wall foundation that includes habitable space (finished or unfinished, heated or unheated) partly or completely below grade. i 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. 1 CROSSOVERS. Utility interconnections between sections of multi-sectien 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 tra 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. I DIAGONAL TIE. A tie intended to resist horizontal or shear forces, but whict may resist vertical, uplift, and overturning forces. FOOTING. That portion of the support system that transmits loads directly to the soil. GROUND ANCHOR. A specific anchoring assembly device designed to trarsfer home loads to the ground. H-BEAM. Steel H-beams are often used to support a home over a basementt 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). j 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. i INSTALLATION LICENSE. The proof that an installer meets the requirements for installing manufactured homes under the HUD -administered Installation program. ' SYMBOLS USED IN THE MANUAL •Ilr' This icon indicates an important warning. Ibis critical to heed these warnings. 7 I This icon indicates a recommended best practice. While not required, following these practices will result in a superior installatior), reducing the chance that cosmetic or dura- bility related complaints might arise. j I ABBREVIATIONS ABS Acrylonitdle Butadiene Styrene max. Maximum Manufactured Home Construction and ANSI American National Standards Institute MHCSS Safety Standards APA American Plywood Association min. ! Minimum i ASTM American Society for Testing and Me- mph j Mile(s) per hour terials AWPA American Wood Preservers Associa- NEC ' National Electric Code I tion National Flood -insurance Program CFM Cubic feet per minute NFIP CFR Code of Federal Regulations NFPA I National Fire Protection Association DWV Drain, Waste, Vent O.C. On center Occupational Safety and Health Admin- EMT Electrical metallic tubing OSHA istration FEMA Federal Emergency Management oz Ounce(s) Agency ft Foot/feet p. ! Page ga Gauge psf ; Pounds per square foot I HUD US Department of Housing and Ur- psi Pounds per square inch ban Development ; in Inch(es) SAA State Administrative Agency LAHJ Local Authority Having Jurisdiction sq ft i Square foot/feet Ib(s) Pound(s) ALTERNATIVE FOUNDATION SYSTEMS I Alternative foundation systems or designs are permitted if they are approved by the home -manufacturer and the manufac- turer's DAPIA, and are In accordance with either of the following: • Systems or designs are manufactured and Installed in accordance with their listings by a nationally recognized testing agency based on a nationally recognized testing protocol; or • System designs are prepared by a registered engineer or a registered architect or tested and certified by a regis- tered engineer or registered architect in accordance with acceptable engineering practice and are manufactured and installed so as not to take the home out of compliance with th Manufactured Home Construction and Safety Standards. DISPLAY AND STORAGE OF THE HOME II 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 of 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. i 0 Complete Multi- Increased lag bolt size and eliminated wood screws from Table for Roof Con - Section Set 7 Connect Roof nection Conneth,RooC •.:ti ' dded:fo¢fca-'fasfenm Co;. a6efof aofCahl7e hoia=frs-�. ,„. -*`2 ;- „_ 7 Connect Roof Deleted roof sfra s and fastening boitin through did ebeam Complete Multi - Section Set W -,,,-, tr', ,`�, rrI.,"�ryk'.e ,¢berm Ih faslenn Complete Multi Similar changes for triple -section as shown earlier for double section (i.e. lag Section Set 7 Connect Roof bolts increased and roof sVaps added) h- 3{aE''n9rg'f�'„eie�.^v hz t,�..,✓ ,i�ro'`*c uCoFlnect`Walls-s': 3 �. eleted:fas(enin throw h'e dwall str{dsftr ':. I �S'ectreaS`"e�' ., ,r_+++ ure t Revised level tolerance; added shimming step, Deleted Figures far tag unit Complete Multi- Section Set 9 Attach Ta Units offset conditions added fi uie for to roof to main umt connection tt Gomple do8c� ry't` J 5 ,� ��Lr �•'�F Wv '''", metho`d'ldrtn t'�sMOM, I Deleted text & fi ure for to init with offset roof Complete Roof & Ext. Walls 2 Corn late Ta Unit Roof -;.ConnecH ros'sa� �"a�-�^.�-2.� y sz:�;. ,.�:�: a, �� r . �z�c-,y�.*F •� -•"`- `„�"r.r fev ' �r,� a•�. ,e.�pa"�£, � - tx`rz-',� s 4 Mai ' -oiadectNia'7u2Gs ,.,... ` •`Deleted'feii€;&'fi 2 Connect Electrical Cross ures'for^io fro :crossdv'ap_d�tirtliesflodrerossover:' I Deleted text & fi ure for method 2 unction box with conduit Connect Grosso vers overs •'.�`t'maeTed tek"t:,&:1•i ura.fo5.wal cross I Deleted text for strap metholf of bondin . Connect Crosso veers 3 Install Electrical Bondin �,`,�LOMQ�,.QLO T(.v" G �h'4. •k\., ? 1''�.s-.yy' § �L" a' �,- 'Zjiv ��_ ^:'1' ^^� "' .`y¢ . eT- 6gxdrq;'boacd. it w'-(�i' A 19tednfdxfrBafi to fc, .. tlfj dro ed: ,,.^aE"<%> 1 Determine Anchor Loca tions Installing Stabiliz Installing in S Added wamm about unde round utilities _ ;InsFalh49sSfaFiilrt PD:efecm,e•A, K,E7Tf ina�tl kfi ontabfe_ al °bra ieSAS cho ,v 1 Determine Anchor Lora f}rt Installing Stabiliz in S ?'%lppstalling Stabil �,.,� bons t 413etecmm�Fidfi rCb a ;',, Deleted endwall frame anchors eeC�nyoverWZ3i8�`x3t�CP.!ts cyr�sh2pnval}a nc(� rya „gdxrtf g�eltmav,Aihn,,,, f ''2^ %?-"?YY i .T:JN n'+s> R �Y�� I /Ka`�` .� AW✓T 4 1 + 'S�t % � ,r ..} ,...�-._<�i =� .nS�. Installing Stabiliz 1 Determine Anchor Loca line in S ?rt�s(all Flg-$tatil{2 Y}��-"'3}''ssr�"�•'�ttc3 bons Added fi ure for G stra s a mating �'," 'l�e�iw�t il i�.:"�", ^4*".w��?FAft',q^-,,�.�,. ."' '. -0Y,}',�'d-:-s�:> Deleted Vertical Anchors text and fi ure Installing Stabiliz in S s 5 Install :1 1s '�Tristalhrgfa„.billz ems, ""vv fia:.,=i�;;,Avd'FigEfresfdr'strap>`w chonlfg a4Sppbrdsls�.fatied`Figaxfor..11hta#.. _ .r0x `.m In Feedown'9raclF"e Revised table for Electrical Feeder Wires by adding 150 amp and renaming Connect Utilities :Conmeef<flUlifiesK e,._„r2: 1 Connect Electrical Service ;Gonna t4Vae�ServiccLe-,"Deleted'.filllv"aterheater,5i" Bare Ground i iro h diostati�methEid�" .s rv-^ .:.�.�. -^ = Revised orifice warning from 3000 to 2000 feet„added warning about deraled Connect Utilities ~'PrePareRp�il> 5 3 Connect Gas Service Insial or�drhone%r He - � '� fuels ! _ 'sus. =Delete £odiv.:oe.G¢usdzve VlaVon�#le�Y"flud�nttr -i �i.' ui`�'�'-.'� � -Prepare •-p � �:., ?.�� YexF#5 Appliances 8 E Pre are Smoke Alarms Revised test method for Joke alarms deleted ste s for removin batteries .3 prePA_�P,liameesi �c� Ins a'17C`ai-n la s/ufiahifs.repAppliances 8 E out Install Cedm FanslLl tits I Deleted text & fi ure for mountin on site installed beam pareAeplian�-„,'.y--��"`""'�"r `rri. n„wed €xG'gPtioKfo �lasV ipeYdded-detai tvcd4ttst,-a. detL_b1516" tr ✓ui '``3:es �ledthca $". to ^? , '..Lnstalf anat' v eralfopral+est rr*Tf ". g ?�"'-.,` 3 Install Slurtin Complete Exterior Work Prohibited the use of o arable foundation vents SC'or 1pfgte Ex�55; x ✓S:. Ski 4,. 'T-� d`P�c"ofec5on`SfE t'Yr. -.�_g Co PJ.e,[ejie�, eoft,�hehsK ife teztata6 ey fig'"Si adde�{Aatrvr gre6od the "� ..^,i+�GBaoGsfiu Complete Exterior Clarified connections to t4 home; added caution on heating, IighUvent & _Work 5-Site_Built Structures _ _amass for site _builtsWcture 9 o Vertical anchoring may be ignored, however the bracketslalong the sidewall should remain in place. i o Floor and roof connections may be per Wind Zone I • When a Wind Zone III home is placed in Wind Zone II, all require ants of Wind Zone III should be followed. • Homes located within 1,500 feet of the coastline in Wind Zones II end III must be designed to withstand exposure'D' conditions. This will be Inddated on the data plate. I If the home does not conform to these rules, contact the manufacturer immediately. All counties except those listed below as within Wind Zone III Parishes of Acadia, Allen, Ascension, Assumption, Calcasieu, Clameron, East Baton Rouge, East Feliciana, Evangeline, Iberia, Iberville, Jefferson Davis, Lafayette, Livingston, Pointe Coupee, St. Helena, St. James, St. John the Baptist, St. Landry, St. Martin, St. Tammany, Tangipahoa, Vermillion, Washington, West Baton Rouge, and West Feliciano i Counties of Barnstable, Bristol, Counties of Beaufort, Brunswick, Camden, Chowan, Columbus Craven, Cumtuck, Jones, New Hanover, Onslow, Pamlico, Pasquotank, Pander, Perquimans, Tyrrell, and Washington Counties of Aransas, Bmzoda, Calhoun, Cameron, Chambers, Galveston, Jefferson, Kennedy, Kleberg, Matagor- da, Nueoes, Orange, Refugio, San Patrido, and Willacy I Entire state Counties of Broward, Charlotte, Collier, Dade, Franklin, Gulf, H$ndry, Lee, Martin, Manatee, Monroe, Palm Beach, Pinellas, and Sarasota I Counties of Carteret, Dare, and Hyde STEP 3. CONFIRM THERMAL ZONE i 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 higher thermal zone number than that indicated on the data plate. (Example: a home designed for Tt]ermal Zone 2 cannot be placed in Thermal Zone 3.) 1 • A home may be located in a lower thermal zone than that Indicated on the da- ta plate. (Example: a home designed for Thermal Zone 2 may be placed in ei- ther Thermal Zone 2 or 1.). • In no case may a home designated for installation in the "Humid & iFringe Climate," as identified on the data plate, be located outside of this legion (Table 2). A home that is not specifically designated for instailatior) in the 10 J 6 z Z Q z O J J Q I— z z 12 • There are special high roof load areas (primarily in mountains) no the map. Contact the LAHJ or SAA for information about these ar, home's data plate will indicate if the home has been designed for high roof load areas. • Ramadas may be used in areas with roof live loads greater than Ramadas are to be self-supporting, except that any connection to must be for weatherproofing only. TABLE 3. ROOF LOADS BY LOCALITY All counties All counties Counties of Androscoggin, Cumberland, Counties of Alger, Alcona, Alpena, Antrim, Baraga, Benzie, C Dickson, Emmet, Gogebic, Grand Traverse, Houghton, Iron, I Marquette, Menominee, Missaukee, Montmorency,Ogemaw, common, Schoolcraft, Wexford All Counties of Cayuga, Clinton, Essex, Ede, Franklin, Fulton, ston, Madison, Monroe, Montgomery, Niagara, Oneida, Or toga, Schenectady, Seneca, Warren, Washington, Wayne, All Counties iwn on The of these psf. e home Oxford, Sagadahoc, York Cheboygan, Chippewa, Crawford, Delta, Keweenaw, Leelanau, Luce, Mackinac, m, Oscoda, Otsego, Presque Isle, Ros- Hamilton, Herkimer, Jefferson, Lewis, Living- ntarlo, Orleans, Oswego, St. Lawrence, Sara - Yates . Counties of Ashland, Bayfield, Barron, Buffalo, Burnett, Clark,.qhippewa, Door, Douglas, Dunn, Eau Claire, Flor- ence, Forest, Iron, Jackson, Langlade, Lincoln, Marathon, Margette, Menominee, Oconto, Oneida, Pepin, Pierce, Polk, Price, Rusk, St. Croix, Sawyer, Taylor, Trempealeau, Vilas, Washburn Prepare the Site A properly prepared site is critical to a good quality installation and the long term structural stability of the home. This chapter explains the process of planning the site, evaluating the soil, and preparing the site for construction of the home's support system. I STEP 1. PLAN SITE ACCESS Planning the route to the site is typically the responsibility of the retailer of tion company. Whoever is responsible must secure state permits from the through which the home will pass. In planning the route, avoid obstructions that might interfere with the pass home, such as low hanging wires and trees, low overpasses, and bridges for the load. Contact the utility company if wires need to be moved. Do no branches, bushes, or other foliage to scrape against the home as the hon the site. Avoid ditches, berms, steep slopes, and soft ground. Identify and and soft spots into which the transporter's wheels may sink. Avoid movinc changes in grade (20 degrees or more). If required,, provide for home storage and staging areas on the site. Plan t and staging of home sections and materials so that after all deliveries are home sections and materials can be accessed for use and installed in the sequence. Orient home sections so they do not have to be rotated or excf neuvered during the installation process. Plan for temporary needs, such sters, portable toilets, crew parking, delivery vehicle drop-offs and concrel liveries. Before moving the manufactured home to the site, inform the LAHJ and n site is prepared and utilities are available. e of the A suitable Ilow is moved to I any holes ver steep delivery rmplete, opropriate lively me- dump - mixer de- ce sure the STEP 2. DETERMINE HOME LOCATION AND LAYOUT The home location may have already been determined by others. If not, plan the home location and layout in compliance with the regulations researched in Gefti6g Started, STEP 5. CHECK LOCAL CODES AND SECURE PERMITS (p. 13). Contact utilities for locations of existing infrastructure, such as underground cables, pipes, land electri- cal lines. i When planning the site improvements, consider the following: i • The home location should be level. I • Avoid contact with large trees, steep slopes, poorly drained areas, and poten- tial flood zones. • Preserve trees and shrubs for shade, visual screens, and windbrgaks. • Plan the driveway, parking areas, septic, well, other structures, aH utility lines, 14 di // Site Preparation. The home manufacturer has no con- trol over the site planning and installation of the home unless the manufacturer is responsible4or 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. iA// Fire separation. Comply with any LAHJ fire separa- tion requirements or the re- quirements NFPA 501A, 2003 edition (Chapter 6). • The water table must be below the lowest level of the planned support sys- tem/foundation. A soil's bearing capacity can be greatly reduced when it is saturated with water. Note that water tables may vary with seaso6al or cli- mactic conditions. Consult a geologist or the LAHJ if you are unsure of the water table level. I • The soil must not be a highly expansive type. Expansive soils cart expand when they become saturated with water, causing the home to shift and be- come unlevel. If soils are expansive, contact a registered engineer, or regis- tered architect to assist with the design of the foundation system. I STEP 5. DETERMINE SOIL -BEARING CAPACITY AND FROST LINE The soil under a home must be capable of withstanding the loads imposed by the weight of the home, its support system and furnishings, as well as any loads impc by wind, snow, or other climactic conditions. ` SOIL -BEARING CAPACITY Determine the soil-beadng 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 bearin"g capacity: • Test the soil. Hire a registered geologist, registered engineer, or I gistered 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. i Obtain soil records. The local office of the U.S. Department of A Natural Resources Conservation Service (aww.co'Is usda_aov) ; LAHJ may have test results and/or soil analyses on file for the are Conduct a pocket penetrometer test. Use a pocket penetrometr 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 in or to the depth of the bottom of the planned footing. 3. Using the instructions provided with the pocket penetrometer, least five readings. 4. Discard the high and low readings and average the remaining Round this result down to the nearest soil -bearing value show right column of Table 4. 5. Confirm that the rounded result matches the soil description o Determine soil -bearing value by visual examination. If one of tl above is not available, the values on Table 4 can be used to estat bearing capacity by visual examination. This method provides low" values than the options above. Accurate soil identification typically special training or expertise. An engineer or building code official r to assist in classifying the soil found on the site. IN id/or the to esti- hes deep ake at eadings. in the Table 4. a options sh soil - capacity equires ay be able 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 pene- trometers. Pocket pene- trometer do not work on sand or gravel. Use Table 4 to determine 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 inaccu- rate reading. 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 prdbe manufac- turer's instructions, take the torque wrench reading in the area where the anchors will 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 arjchor manu- facturer's charts to select the anchor type(s). I 18 supports will increase the load on that support and the size' of the required DETERMINE LOCATIONS Point loads exist where a bearing/structural weight is concentrated and tran the foundation at a specific point. Locate a support under each point load, it following examples: • Both sides of sidewall exterior doors, patio doors and sliding glass (blocking is not required at exterior doors on non -bearing end wall; • Multiple window openings at both sides of each opening. • Other sidewall openings 48" or greater in width. to I the • Locations where through -the -rim crossover ducts penetrate the rim 'oist at the marriage line (unless otherwise noted in supplemental documents I rovided with the home or unless the home is constructed with a perimeter f ame system). • Marriage line columns. • Load -bearing porch posts. • Labeled G-2 strap locations (for sheanvalis). • Under heavy (400 Ibs or greater) items, such as heavy furniture, waterbeds, fireplaces and large fish tanks located outboard of the home's main I -beams. Mark the required point load support locations on the sketch. Supports are n 7 t required where the manufacturer has reinforced the floor (such as with additional outnggers or floor joists) and so noted in the documentation provided with the home. Figu{e 8 identifies typical point load support locations. Sh.—H Pie, came CALCULATE LOADS Consult the specific plans for the home being Installed. The location of the piers is shown on the floor plan. The exact loads for any mating line piers the specification tables for that floor plan. 20 Figure S. Typical point -load support locations SRt,•111: IT Ili s•ti line t vn on a •' o. 0242 STATE OF -'.Zr ctrC Jun 08, 2018 I I ---------------------------i --- i O.C.2-0" �SpaO C. gMnusc> 3'-0"/ I I ------------------- ------ - i I ! CALCULATE LOADS j Use Table 5 to determine the loads on frame supports. Find the column vhthithe ap- propriate roof load zone and section width. Find the row corresponding to the'( selected support spacing. The number in the intersecting cell is the load. i 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 spacing should be calculated separately. I Use Table 6 to determine the loads on porch post piers. Find the column with the ap- propriate section width. Find the row corresponding to the roof load and porch post spacing. The number in the intersecting cell is the load. I Note the location and load required of each support on the sketch. , FOR HOMES Figure 10. End of beam piedng exception 2100 i 2400 I 2700 j 2900 I 3000 13200 61 `Z600�290'0�1''330�;y3�5,R0,,�r3--,aQT`396 Perimeter Plating Perimeter Piedng 3100 3400i` 3900 L 4200 4300 4700 Required for 30 psf Required for 40 psf (See Table 7) (See Table 7) r 4900 5500 6300 1 6800 I 7000 7506 i i Eave width is 12" maximum for all home widths. I TABLE 6: SUPPORT LOADS ON PORCH POSTS i of Max. section width 'ttt\\1\L'Ifrl ad 750 850 900 1000 L 1200 7I �*V o. 02A2 i . OOrs 9�`Aa 1�40'u'.r= ��'',�#d,400�4w 1500 1700 1800 .� 2000 2200 -0 - STATE OF Q' .�(0�• A4 O R 1450 1700 1800 J 2000 ± 1 2200 f w ......� G @"�,f" %Ns?'N? �'.r2 t10>�:"��ates"iH��O 7 Y,'-�` <2SbD) m• '� t2fl0(ly�: \trtt\ i Jun eB. 2018 22 Use Table 6 to determine the loads on porch post piers. Find the column with the ap- propriate section width. Find the row corresponding to the roof load and porch post spacing. The number in the intersecting cell is the load. Note the location and load required of each support on the sketch. i TABLE 7. LOAD ON FRAME AND PERIMETER SUPPORTS FOR HOMES REQUII 1200 71300 1350 1400 j 1450 1500 1200 1300 L 1350 11400 1450 11500 '10;9 0 y`LD1 �t500 1��z,i2901T�y3„2i1D•-t`�2,0,24.: See Floor Plan instead See Floor Plan instead 1500 1700 .. 2000 122002200 2400 1800 j2100 2400 12600e I22M00 2900 1700 11800 � 1900 � 2000 � 2000 i 2100 1701 180000 2 F00 Q(y"�' '2ppD=" 3 I'1x s3500 2800 . ^"29,FID 3 '� t0�;q iC 1 U0 *1 0 t+?�3.y`dA �320Q%„lr See Floor Plan instead I See Floor Plan instead �' 7 6�3.aQ 2400 is"�CbO�"i`�Z6Qiy��,.�?�00•� �TDd��b¢�'"'{486�`t�260Ek'x'�� 26UU ay28d0i. 0 .. 2200 1 2600 3000 3300 3400 3700 2700i 13100 3600 4000 4100 i 450 s s.��Se�,PIo4rE�arw�d,�te3d�".�,'.,es��laorP�an�,tn�staad' 2500 2700 3000 3100 3200 3400 2500 l 2700 j 3000 3100 1320er 3400 See Floor Plan instead See Floor Plan instead 1200 ! 1300 1350�._1 1400 1450 1500 See Floor Plan instead 2100 2400 2800 1 3000 3100 3400 srai:.-rr52e, tso flranAnstV. 1700 1800 1900 1 2000 (2000 2100 See Floor Plan instead 3200 3700 1 4200 4600 4800 15200 t an�nstgaii� 2500 2700 30010 3100 r 3200 3400 See Floor Plan instead Eave width is 12" maximum for all section widths (Based on Table 2 to 3285.303) 24 y�yt s 0.0242 -17.STATE OF .� °anu Hera Jun 08, 2018 9. PIER Between 36 in and 67 in and (Double, interlocked blocks 1116,0001bs. comer piers over 3 blocks high In or less (Single -stack blocks with long side 118 000 lbs. parallel to perimeter rail (rim joist) I 26 FAiz o. 242 STATE OF : C •� tier. ' • �a1�lVlit S'lw •••i4 r 1 011% Jun 08, 2018 I Figure 12. Maximum footing f extensions i 16'BIOIX 7 4• TT .S• TT {y� 41 TYpl 24• NO Footing Extends NO Extend.By NA. 16" i6" YESBylswortess Then llsrnkkness 24" 16' orLess YES I,e 4• B' 4' n• i 1 Split Pooling Extends Sp11FCoung Extends i YES Less men Tes t st NO Mos man One Thin ! uewdm u:wft • The footing sizes shown are for square pads and are based on tho surface area (square inches). Design non -square footings such that the area and depth is equal to or greater than the area and depth of the square footing shown in Table 10, and the distance from the edge of the pier to the edge of the footing Is not more than the thickness of the footing. See Table 11 for equivalent sizes of some alternate footing sizes and shapes. SeejFigure 13 and Figure 14 for details of certain multiple pad configurations. i • For four -inch thick unreinforced precast concrete footings, use the! minimum footing size for the six-inch cast -in -place footing from Table 10. Concrete runners may be considered as an alternate to individual footings. Runners may be oriented full-length of home (parallel to the homel main beams) or in a transverse direction. The size of the runner should Imeet or ex- ceed the size of the footings shown in Table 10. Example: 30"x30x8" footing may be replaced by a 30" wide x 8" thick concrete runner. I I TABLE 11 FOOTING EQUIVALENTSIn-Place Concrete Con Concrete I DiameterUnreinforced Cast- 16x16 Precast Round Cast -in -Place Size (inches) 1 G416z`; ,2✓,'k8ingler"k sx a,+6 .ci''10 1'a -,,. 1i "n� ,�, 20x2O Double 24 uaff's<n7"'.,ri. '".n✓3 a'�- c> ta`1,� ' 30x30 Quad 36 36x36Ooublequad 4Z -, 42x42 Double quad 48 , 48k48 ,„ hfa ,,. • , ' . �6 f Figure 13. Multiple Concrete J PRECAST CONCRETE PADS ( Pads a ' acrurr: ,.. z (16" x 16" x 4" thick pads) ��•• c,�i •,++/L�s O I .• o • o2Sz�y•T� axx -Q % STATE OF ; 4 a '.,2;J'• .1` � Vito. 0 2 %DG��; Single Pad Double Pad Quad Pad Jun 08, 2018 28 J Q z z z 0 a J J F w z 30 bottom of the footings below the frost line (insulated foundations and mono- Itihic slabs are other frost protection options not covered in this manual). • Make sure the top surface of the footing is level, flat, and smooth. I • In accordance with the American Concrete Institute publication ACI-308, maintain curing measures before construction or installation onto the concrete footing begins, until a minimum of 70% of the specified 28-day compressive strength has been achieved. The ACI recommended time to attain .Hs level of strength is seven days for ASTM C150 Type 1 mixtures and 10 days for Type II mixtures. Full design live and dead loads may not be applied until the 28- day duration has elapsed for achieving full strength: • For multi -section units, the mating line piers may need special solutions. If a G-strap occurs at a support post, the piers can be arranged as shown in Fig- ure 16. If the loads at the support post are large enough, it may bell necessary to use double piers as shown in Figure 17. If a G-strap occurs where double piers are used, it may be necessary to add support beams as sho in Fig- ure 18. • Figure 15 thru Figure 18 are intended to show pier and footing pi cement. The actual pier construction shown (concrete block or commercialretal) is not meant to limit the type of pier that can be used. Any type of pier described in Table 13 (p. 38) may be used in these confiigurationsi1 Supped Poster Suppod MatingAe— Pasta Walt L peleE M.UN _. .. Wail Wetlges ,,0$0�1�ecand Pier Second ir Pier If rewgulretl For ro.111pl.do piers p rt half fDre pier n up only support M1aHafNe brat support ppsibatl. ground with stakes before beginning to dig. Figure 16. Piers at Support Posts (with G-Strap) �,Q1 a I:IA s' ' o. 02d2 -Q * STATE OF ; .Zr �• Jun 08. 2018 STEP 2. REMOVE PROTECTIVE SHIPPING MATERIALS............. ....................................................... 41 STEP 3. COMPLETE HINGED ROOF......................................................................................................41 STEP 4. REPAIR OR INSTALL MARRIAGE LINE GASKET .......... t.......................................................44 STEP 5. POSITION ADDITIONAL HOME SECTIONS.....................a.......................................................45 STEP 6. CONNECT FLOORS ................................................... :............................................................. 46 STEP7. CONNECT ROOF............................................................... ........................................................47 STEP 8. CONNECT WALLS............................................................ I 50 STEP 9. ATTACH TAG UNITS.......................................................... ci.................................... :.................. 52 STEP 10. REMOVE TEMPORARY ITEMS.......................................:....................................................... 53 STEP 11. FASTEN HOME TO FOUNDATION.................................. .......................................................53 STEP 12. BACKFILL AND GRADE.................................................. .......................................................53 STEP13. BUILD STAIRS.........................................................................................................................53 COMPLETE ROOF AND EXTERIOR WALLS ................ .................... I .................... 54 STEP1. COMPLETE ROOF............................................................. ....................................................... 54 STEP 2. COMPLETE TAG UNIT ROOF .............................. .............. i....................................................... 56 STEP 3. COMPLETE SIDE WALLS .................................................. !...................................................... 58 CONNECTCROSSOVERS............................................ .............................I...........59 STEP1. CONNECT DUCTS .......................... ....................................I.......................................................59 STEP 2. CONNECT ELECTRICAL CROSSOVERS ......................... :....................................................... 61 STEP 3. INSTALL ELECTRICAL BONDING...........................................................................................62 STEP 4. CONNECT WATER LINES.................................................. ....................................................... 63 STEP 5. CONNECT DRAIN, WASTE, AND VENT LINES................j•....................................................... 63 STEP6. CONNECT GAS LINES.......................................................1.......................................................65 STEP 7. CONNECT TELEPHONE AND CABLE TV WIRING .......... ...................................................... 65 COMPLETE THE INTERIOR ..................................... ....................:......................... 66 STEP 1. ALIGN MARRIAGE WALLS...................................................................................................... 66' STEP 2. FINISH GYPSUM BOARD ................................................... I......................................................66 STEP 3. COMPLETE WALL AND CEILING FINISHES..........................................................................66 STEP 4. COMPLETE CARPET........................................................$...........................:.......................... 67 STEP5. COMPLETE TRIM................................................................1...................................................... 67 STEP 6. INSTALL SHIP LOOSE ITEMS ............................ INSTALL STABILIZING SYSTEM..................................i.........................................68 STEP 1. DETERMINE ANCHOR LOCATIONS.................................!...................................................... 68 STEP 2. DETERMINE TIE -DOWN CONFIGURATION.......................j......................................................74 STEP3. SELECT ANCHORS.............................................................I...................................................... 74 STEP4. INSTALL ANCHORS.................................................................................................................. 75 STEP5. INSTALL STRAPS...............................................................I...................................................... 76 STEP 6. TIGHTEN AND ADJUST STRAPS.......................................k...................................................... 79 CONNECT UTILITIES.....................................................I STEP 1. CONNECT ELECTRICAL SERVICE 80 ... ..... .r..........................7'........-. STEP 2. CONNECT WATER SERVICE.............................................{......................................................83 A ...................................................... 80 STEP 3. CONNECT GAS SERVICE...................................................1......................................................86 STEP4. CONNECT OIL SERVICE.....................................................l.....................................................87 PREPARE APPLIANCES AND EQUIPMENT................1........................................89 INSTALL AIR CONDITIONER OR HEAT PUMP...............................:..................................................... 89 INSTALL EVAPORATIVE COOLER .................................................. ..................... :................................ 89 PREPAREHEATING SYSTEM..........................................................i.....................................................90 INSTALL REMOTE HEATING AND COOLING EQUIPMENT .................................................................90 HUD MHCSS 1012118 Support post — See tooting table for capacities wedges )lock Palates FOR 3 2X10 17000 3 2x14 1 rt4xto> �' � . L lzoaff ;, � r�axt4 2 2x12 12000 1 —4x12 1 16000 1. Lumber to be minimum SPF #2 (may be treated or untreated) I 2. Beams of the desired configuration may be selected from the apprdpriate table and used individually or in combinations to achieve the required capacity 3. Multiple 2X members shall be fastened together with 16d nails at 8' o.c. through both outer members j 32 Figure 18. Multiple piers and G- strap at support posts locate the pockets carefully. It is critical that when the home's frame rests on top of the H-beam, the perimeter of the floor rests squarely on the foundation wall sill plate (Figure 19). j i Bolt a pressure treated wood sill plate (minimum 2 x 6) to the top of the foundation wall. Connect the home to the foundation according to the approved desig6. Recess nuts into the sill plate and cut off the ends of bolts so they do not project above the sill plate and interfere with the placement of the home. ! Floor Pressure Chassis Sill Pl tl Maln Sill Piate -Beam Transverse H-beam Grout STEP 5. INSTALL INTERIOR SUPPORTS Install piers, columns and H-beams to support the interior of the home approved design. STEP 6. DAMP PROOF FOUNDATION'WALL Damp proof the foundation wall no less than up to the height of the to the or based on weather conditions. A geologist can perform an algae test to determine the water table level. The foundation design must account for a high water table. Level the wall. Make sure the foundation is level and straight with no more than a 114 inch vertical variation over the entire foundation and no more than 1/8 inch vertical variation over any two -foot length. Check for Plates. When us- ing an H-beam system, check and compensate for reinforcement plates that add thickness to the chas- sis beam at axle locations. Figure 19. H-beam installa- tion @Limits of exca- vation. When a crane will be used, excavate no more than two feet outside the foundation perimeter. Un- excavated ground will pro- vide a more stable base for the crane. Footing heights. Pour foot- ings to a height that will re- duce the need to cut blocks or shim when building pe- rimeter walls and piers. backfill. / + / A sr Backfilling. Backfll against basement walls only after the home is connected to the foundation or the basement walls may deflect inward or collapse. STEP 7. BACKFILL AND GRADE I Backfill against the foundation wall to the height of the damp proofing. Take care to not damage the drainage system. Grade the fill_ as per Prepare the Site (p. 14). 34 J Q z z Q z O J J FQ- z z 36 foundations JACKS i If jacks are to be used, comply with all jacking safety precautions and the piocedure below. Lifting the home with jacks Involves potential risks and must be done with ut- most care and caution. Failure to followjacking warnings and procedures rr`ay result in serious injury or death. Please read the Jacking Safety Precautions before lifting the home with jacks. I edorwhrlethehomeissupportedonlyon.thelacks • Use jacks onlyfor. raisrng'thehome Do notrely on the jacks to sdbport the Inome .: If. nossible., raise the home onlvori one side so that the other side s in contact:, • Obeysalf OSHA regulations i • Make sure adequate safety cribbing (Figure 10) is in place whenev r the home s piII aoed orrjaclu ' Use'a min um of two cornmercral,gdality:jacks, each=moth a rating of aF least- 12 tons • Jack 661y on the-rnbin chassis I beam centenng.jackZ;,direclly do erthe beam • Do notjack on asearmUbi t b&ween fiariges of twin 1=beams).. . • T6distnbute the:conoentrafed loads from'jacks to I=beam, place,a m0momu" 3/&inch thick steel plate a.C=ohanrSel, a-1?/:inch thick"hardwood-blockor a commercial jacking plate between the me chassisa•beam and the jack he6d; Locate the jack base on fimt_ground Neverjack on fre's_hI disturbed sotl or, where an undefgound sewerpipe maybe_ located • Use,,a fimt,suppoit under fhe:jack base to'prevent ppping or settling of the jack; A mij;jimuml6 x;1fi orfargeorwood or rigi8 fiberglass pad is recc nmended . Nevecuse concrete blocks.as�a supportforajack, =i- Follow the jacking sequence outlined below to avoid overstressing stmctur�I members 1. Block wheels. Block the wheels so the house does not roll. 2. Install cribbing. Install safety cribbing (Figure 20). -1 I I I I I I I — — — — — — — — — — — — — — — — --� r 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 h fight). 4. Locate frame jacks. Place a minimum of one Jack just forward ofithe 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 20 feet apart and no mori 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 th n the final desired pier height. Figure 20. 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. Nominal dimensions of at least 8" x 8" x 16"; minimum C90, grade N. Nominal 2" thick boards. Available in various sizes stamped with maximum load cal load capacity, and where required by design, for IN TABLE 14. PIER 8,000 Ibs; confirming to ASTM designation and listed or labeled for the required verti- late horizontal load capacity. Between 36 in and 67 in Double, interlocked ocked blocks up (%" ito 36" high 16,OOO Ibs. Not required .Qvgr„titna„g, 7"?. -side ca.,r Deagrietlbya,regrste:; d,ertgine�rgrregistereda[chdect.. Three or less blocks high Ica-stac blocks with long I �" 8,000 Ibs. Not required to 67 in Designed by a registered engineer or registered architect Single -stack blocks with long Y. up to 36° high, 54 In or Tess* side perpendicular to the 1" over 38' high 8,000 lbs. Not required marriage line I istruct perimeter and marriage line piers over 54 inches according to the requirements for frame piers of the same heigh 1. 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 lacing 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) pn a layer of premix dry sand mortar. j 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 21) and plan blocks so that split caps will be perpendicular to the blocks they rest on and to the 1-beam. ,�pu n:•�q s o. 0242 STATE OF ; a` ,< O, +••rn rpl Jun 08, 20f9 38 o rt rralr=ll'Ir `IrF n'nkll'R"Ir'Ir-n_Ir n-n- non I II II—n—Irn nku II—n—II n—II—II—u n—n—Il' �IILLI'I ��IILLIIIrIIJ111�IILLIILLIIIIIIllIIll'IlLLllllllllll�lllllll"11�11=11 `11-11 11�11-111111LL II Ili1�=11 II II II-11=11F11 111111=11 11=11=11=11=11-11=11=11FII7T1 II II-11=11 I —II— 111 II IIF I-11 II II I 1 II II-1—II�11 I 1 II- 11=11klhll II IhII—II—II-11-11—II II-11—II II—II—II—IhII—IIkII—II—II-11= I-11=11=11=11=11=11'—II-11=11-11-11—II—II—II—II-11=I1-1'I—II—II—II—I—I—II-11 -11=11F11—II-11=11=s=11=11F11=11—II-11=11=11=1j-1141=11-11=1LIlyll=l —1=11—II-11=n=nFn=n=11=n41=T=n=Irn—rl-11=11=11=n=11-11= —ill-ll—ll=ll--kLL=ll=11Cll=ll=LL=11-11=L=11=ll—ll=11=11=11`LL= =11=11—II 11=11=11�IL-11=11=11-11=11=11=11=11=11=11-11= =11=11=11=11F11=11= — ——1=11=11- -Iltll„Ilull= a ,water I loyle f Level piers: Move the tubing to the -next pier. Hold tfie�valve: t' .-:above the;pierand open d Set the p)erheight to the level of the_ 'Waterin tha:.,tubiog and close the value Repeaftfils step uall iplers are;atithe'same level i{ 6 Complete the opposite side Jack the other side of the section up and install J piers following the Instructions above. At the completion of this stet, the sec- tion should be level from front to rear and from side to side. jI Q 7. Install perimeter and marriage line piers. Install perimeter pierstand for multi -section homes, marriage line piers. Position marriage line piers to pro- vide equal bearing for both mating sections. 's O B. Remove running gear. Remove and store, recycle or properly dose of the �=- hitch, axles, and wheels. These Items are'the property of the homeowner un- less other contractual arrangements have been made. i J FIs this a single-sectio6 N Z •• to Connect Utilities, (p. :1 40 Level the home. The home is adequately leveled If there is no more than 114 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 property 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). sion may be required during lifting. However, take care not to over roof and damage the hinge. Raise the roof evenly in small increml ing it level throughout the entire process to (prevent racking. Do nc ing paper and shingles to get caught in the hinge crease. 4. Secure king posts. Position the hinged king posts atop the fixed or against the wooden stop (Figure 23). The king posts are hinge derside of the hinged -truss top chord. Position them as needed to roof, aligning each hinged king post with the king post directly bar securing in place using straps, sheathing and fasteners as shown 24, Figure 25, Figure 26 and Table 15 and Table 16. W min.. 15 ]K. B'.V b,p .1-.-Ihll,g e1 p.. pId 0 a. F.'e to Nh 4N ppslx4� ]If6'.11R'a 16Qa. <upceama•o.c 11. O4Uq" End View Nalllnp pleb la.<a<Ln post down top Fixed up king post FXB strap IofaGm TABLE 15. HINGED ROOF KING POST STRAP SPECIFICATIONS Mend the its, keep - allow roof- ng posts to the un- .vel the ath it, and i Figure ener Spacing King post strap 1-1 9aU9eX 26 . Every third rafter Every raker very rafter IME , -6'a rr a +H`a"E(a jn eact r6 aelai =ga SPECIFICATIONS Toe -screw thgru #8 x 3" wood I I p P hinged kin screw none 2 er knee brace 4 , r knee brace 42 checklist relates to the roof, then failure to do so may require future disassembly of the roof and further in- spections. Figure 23. Hinged Roof Truss (drawing is typical, ac- tual configuration may vary) Figure 24. Connection of Hinged King Post to Fixed King Post Figure 25. Toe -Screw at Ix Plates ��pf nr: rtrr s O. U24Z •: •• STATE OF �lr rrdyan nt�� Jun 08, 2018 7. Redistribute Insulation. Before closing up the attic space check that the In- sulation has not shifted. Re -level the insulation if needed. i 8. Install gable walls. Install the gable end walls for each home section as fol- lows (Figure 30): p • Studs: Install minimum 1x3 (flat) studs 16 inches o.c. and fasten to truss top and bottom chords and diagonals with (2) 7/16" x 2" x 16 ga. staples or 6d nails and; ' • Sheathing: Install sheathing or siding with 7/16" x 1-1/2" x 16 a. staple or 6d nail at 6 inches o.c. At least two edges of each piece o i sheathing must be supported by framing members. • House wrap: Plant -supplied house wrap material must be Ins(alled over any rated sheathing underlayment as a weather -resistive barrier to pre- vent contact with any lap siding. Material may be secure withlsufficient staples or tape to hold in place until exterior siding is applied.I ead sheathing ,g 9. Install vents. Extend plumbing vents, exhaust fans, appliance vents, and fire- place stacks through the hinged portion of the roof in strict accord4nce with this manual (Prepare Appliances and Equipment, p. 89) and/or supple- mental Instructions provided by the home manufacturer. I 2 �-Q�;• STATE OF '•arr�Nl,LEr'.•� , +nrnu� Jan 08, 20fe Figure 30. End Wall Com- pletion IF 1 /, 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. STEP 4. REPAIR OR INSTALL MARRIAGE LINE GAS ET A continuous, non -porous gasket creating a permanent air barrier must be installed on least the /, at one side of marriage line; along the floor, end walls and ceiling (along top ' or bottom of ridgebeam) and marriage lines for any tag units. The manufactprer has provided a marriage line gasket either installed on the home or shipped loose. If in- Installing marriage line stalled, inspect the gasket and repair any gaps or tears. gasket. Special care should be taken to ensure If not installed at the factory, install a continuous gasket between the home I ections that the marriage line gas - along the floor, end walls, and ceiling (Figure 31). ket is tight to resist air infil- For homes with through -the -rim crossover ducts, see supplemental details fpr the tration and minimize con - densation. proper connection at the marriage line. I 44 STEP 6. CONNECT FLOORS Make floor structural connections according to one of the methods described below. j Patch bottom Method 1: Install toed fasteners through bottom board or floor decking board. Use adhesive Install fasteners at approximately a 45 degree angle (+/- 5 degrees) from hc rizontal as spray, mastic, and/or diver - shown in Figure 32 using the fastener type, size, and spacing indicated on E able 17. gent staples in combination with bottom board tape for Install fasteners as indicated, making sure to repair any openings in the bottom board a more secure and durable with tape specially made for that purpose (may be provided). j connection. TABLE 17. FLOOR CONNECTION FASTENING SPECIFICATIONS Lag screw 1 3/8" x 6" I 36 in. I 20 in. I 116 in. ' Increase fastener lengths by 3 inches for double rim joists. i . Figure 32. Floor connection Mamaea Lra —,—I' ! through bottom board or floor I i decking I romoaung I id ar�rn:ri� G. •• ......... �. \ Rim JoW I S' o Fas�aa' �-L+' STATE OF z Gask01 I I (2'� i�A"� i,�O tOP vet �( Z • G�� Stagger fasteners on either side of marriage line and offset them by half thelspacing distance (Figure 33). ? Jun 08, 2018 Fastener Location I Figure 33. Staggered offset -Marriage Line fastening along marriage line Hati / Spachg Spachg From I Lag specification. 3/8" Table Spachg diameter lags used to pro ; connect pressure -treated spa Table u ' lumber (ie connecting porch Frrom Table I ! rim joists) shall be hot- sI From dipped galvanized. Lags HaM Spachg Table � that are %" or larger diameter are not required to i be hot -dipped galvanized. Method 2: Install horizontal fasteners through rim joist I Insert 3/8" x 3" lag screws spaced per Table 18 horizontally though rim joists and stag- gered top to bottom as in Figure 34. After installation of fasteners, repair teArs or holes in the bottom board using tape specially made for that purpose. I 46 � 1 � • Select metal caps made of minimum 8" x 32 ga. galvanized steel qr 0.019" aluminum. I / /, Install caps continuously, overlapping aIt p • p y Aping by of four inches I splices. • • Fasten caps with galvanized staples on both sides of ridge according to the Installing lags. If lags are specifications and spacing In Table 19. 1 used to connect roofs, use Method 2: Install straps over roof sheathing - !{ appropriately sized wash- ers, countersink the fasten - If the home is built with a TJI ridgebeam at the peak of the roof, straps must be used to er heads and fill the coun- secure the roof sections together rather than lag bolts. The straps will already be in- tersink holes with putty or stalled at the factory at the spacing shown in Table 20 and Figure 36. If the straps caulk to prevent shingles were not installed or if they are damaged see Table 20 for specified size and spacing from sinking into the holes of the straps. The straps need not be galvanized. i over time. For factory -installed straps bend the straps up before the sections are placed together. After sections are in final position, bend the straps back down on top of the roof sheath- ing and secure the ends of the strap as shown in Table 20. TABLE 20. ROOF MATING LINE STRAPS Fastener Number (each end of strap) Straps 1-1/2' wide x 26 gauge 48 in 24 in 16 in y7011 artMx" .�,0' _.Sr1r� Nails 0.082' x 1-112' 9 each 9 each 1 7 each ` Special eave tie -down connections have been installed at the factory that qqt most Wind Zone I homes to be installed without the straps and anchors at the ma}riage line (i.e. "G-straps) that are typically required to resist uplift. Roof s m Underlayment Figure 36. Roof Strapping for TJ1 Ridgebeam .� `.uun:.... s f6 )e beam : I o. STATE OF a� Jun 08, 2018 Method 2: Install straps over roof sheathing I If home is built with a TJI ridgebeam, roof straps must be used to secure the roof sec- tions together at the marriage line rather than lag bolts. The straps will alre 'dy be in- stalled at the factory at the spacing shown in Table 22 and Figure 39. If th straps were not installed or if they are damaged, see Table 22 for specified size and spacing of the straps. The straps need not be galvanized. I For factory -installed straps, bend the straps up before the sections area plaged togeth- er. After sections are in final position, bend the straps back down on top of the roof sheathing and secure the ends of the strap as shown in Table 22. i TABLE 22. ROOF MATING LINE STRAPS Fastener Type Size Straps x 26 1-1/2" widgaue 48 in 24 in 1 16 in e l"r,. 6^�1 .. '..�W �roj"tr11"jrF7P 112N 99 5�_^ Nails 0.082" x 1-1/2" 9 each 9 each 1 7 each Complete the marriage line by installing the roof cap in a similar method to for the Double -Section homes in Table 19. Roof cap Underlayment All. undedaymenl lomti.n shingles ' Rafter king J Post Rkigebeam web shown / Bend up sl2ps lone end of strap applied allfactoryy STEP 8. CONNECT WALLS Once the home is secured along the marriage line floor and roof, secure end walls, in- terior doorways, and marriage line partitions according to the appropriate method de- scribed below: END WALLS Install toed fasteners through sheathing t Toe fasteners through sheathing from the exterior at an approximately 45 d�gree angle (+/- 5 degrees) (Figure 40) according to the fastener specifications and spacing re- quirements In Table 23. 1 50 Figure 39. Triple -section roof connection (method 2) �A au n:aaq 42V STATE OF ('YS eV nn�aa Jun 09, 2018 STEP 9. ATTACH TAG UNITS After the main unit has been set on its foundation, install all tag units accon following procedure: 1. Position and block the tag. Position the tag unit as close to the i possible at its intended location. Use a hitch jack to obtain approx ing and Install pier supports according to Set the Home, STEP 2. HOME SECTION (p. 35). Determine whether the tag and main Lin designed to line up flush or are offset by a step and adjust the tag accordingly. 2. Level the unit. Using a water level (p.40), verify that the piers are elevation of all points along the lower flange of the I-beam should 1/4 inch of level between any adjacent piers or any eight foot dist: ever is less. 3. Shim gaps. Shim any gaps up to one inch between structural ele tag and main unit with dimensional lumber. If any gaps exceed of position the tag to eliminate such gaps. Max. 1/4" lauan shims m; to align the top chords of the main unit dormer and the tag. 4. Connect floors. After confirming that the floor of the tag unit Is Is main unit floor, connect the floors together as described in STEP NECT FLOORS (p. 46). 5. Connect walls. Secure the tag unit walls "to the main unit sidewal 4" screws at 12 inches o.c. (see Figure 43). The sheathing shows may not be included by the manufacturer. If included, the sheath! last stud bay was tacked in place at the factory for easy removal Once the wall connections are complete, re -install the sheathing the siding installation. 6. Connect roofs. For flush roof conditions, connect the tag unit to the main unit dormer face frame using #8 x 3-112" screws at 52 g to the in unit as ate level- )SITION loors are ar heights vel. The within ;a, which- sots of the Inch, re - be used with the CON. sing #8 x i the detail overthe he site. f complete top chord .c. as pr Piers under tag units. Some tag units have spe- cial piering needs due to the roof and/or floor con- struction. These will be de- tailed in supplemental pier- ing plans supplied with the home. Note that tag unit end walls are typically load bearing rather than side walls. Figure 43. Tag unit wall connection e STATE OF �4OR1OP'�� NAL rr+r n u n•*• Jun 08, 2018 Complete Roof and Exterior Walls This chapter covers closing up and weatherproofing the home by complet z STEP 1. COMPLETE ROOF RIDGE CLOSEUP For multi -section homes, the first step in completing the exterior is sealing t the ridge line (Figure 45). For homes with asphalt shingles, follow the prod For homes with metal or other roofing materials, follow the instructions that the roofing materials or provided as a supplement to this manual. roofing and siding. roof along re below. ne with Figure 45. Shingle Installa- tion at ridge In laalege Irefalled , / ' /� I Weatherproofing. It is vital- ly important to close up the Inskalled home quickly to protect the s ll dedayment interior from damage due to inclement weather. ck 1. Install underlayment (when sheathing at the ridge is installed on site). Make Removing shipping pro - sure the roof sheathing is already installed (see Complete MultiSessition Set, tection. Remove shipping STEP 7. CONNECT ROOF, p. 47). Install 15# felt or equivalent con nuously protection from the roof along the length of the ridge, covering all exposed sheathing and o rlapping prior to completing the sheathing Joints by at least five inches on each side. Fasten using 13 x 1" x 16 roofing. ga galvanized staples. For Wind Zones If and III, also apply a six inch wide strip of roofing cement along each side of ridge under the underiayment.I 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 12' a 1-1/4" long, 3/8" diameter head.roof nails. For Wind Zone I, fasten at 618 inch above each tab cutout slot and one at each end of the shingle one inch in #om the edge (four fasteners for a three -tab shingle) (Figure 46). For Wind Zones If and III, use two fasteners 5/8 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 fqr a three - tab shingle). Do not fasten through the shingle tar line. ]6'sM1bgb .i i.g6'shbgle — I Figure 46.Shingle fastener locations for Wind Zone I (left) and Wind Zones It and x x t z• . x x. .>< • x I r 1 111(right). x Fa9ener lgagons 54 the underlayment of the center section on top of the cement (see B2st Practice tip for optional metal flashing). Fold down the center section roof underlayment on this cement. 3. Install shingles. Install missing row(s) of shingles, securing them 0,er the shin- gle manufacturer's installation instructions (refer to the shingle wrapper). Center Secfim ONer SecEw Factory-InsWl FieldlnstaAetl ��✓ SNn31es Factory-Irebll SN,gles �\\ Mphalt Rwff (Optlwep Method 2: Field -installed sheathing I 1. Install underlayment. Fold down the underlayment of the outer seTtlon roof and fold up the underlayment on the center section roof. Apply to the lower roof undedayment a minimum six-inch wide strip of roofing cement centgred on the sheathing joint. Cover with the shipped loose underlayment. Apply another min- imum six-inch wide strip of roofing cement to the ship loose underlayment cen- tered on the upper roof sheathing joint. i 2. Install shingles. Install missing row(s) of shingles per the shingle manufactur- er's installation instructions (refer to the shingle wrapper). j Factory-Instaletl SNngps Shin&s60ed Shingps Ued.Ls nt Underlayment FkU-InsU M f—enemnw,. Awp ft Rwfir Factory-Insbfied Under yment Factrlry-In.Wad Sheathhg Factory-ImWW Nml r Mln. STEP 2. COMPLETE TAG UNIT ROOF f If the home has a tag unit, complete roofing for this unit now. The process,-., completing the roof is different for flush and offset roofs. Follow the Instructions in the aobrooriate 56 Figure 49. Triple -section roof connection Method f Figure 50. Triple -section roof connection Method 2 Main Unit Roof Decking Metal Flashing (Or Top Course Of Vinyl Siding) Roof Decking Tag Unit Figure 52. Tag unit offset roof connection STEP 3. COMPLETE SIDE WALLS Siding necessary to complete the exterior has been provided with the home. Follow the siding manufacturers instructions (found on or with the packaging or as an addendum to this manual) and to complete the exterior siding as follows: } 1. Remove shipping Remove temporary shipping from Covering the HUD label. Do HUD la protection. protec on not cover the - walls. bel on the exterior of the 2. Complete crossovers. Complete any crossover connections in the walls, in- home. cluding: electrical, stereo speaker, doorbell, telephone, and interco wires. Removing shipping pro- 3, Install siding. Fasten siding only at stud locations, avoiding e(ectri- I wires tection. Remove tempo - that are present In the walls. rary shipping protection 4. Install close-up of strips. If siding has been installed on the end w�[is at the from walls before installing factory, fasten close-up strips securely along both edges and seal the edges siding or serious moisture damage may result. with a waterproof sealant. 5. Install trim. Install any matching trim required to complete the installation. 6. Seal penetrations. With a waterproof sealant, seal any penetration$ in the sid- ing that may have been caused by temporary shipping protection. , IMPORTANT: Where a porch meets the exterior wall of an adjacent section !or where a porch extends across multiple sections of a -home, it may be necessary to Install weath- er resistive materials, such as flashings or sealants, to protect exterior coveripgs and re- sist the infiltration of'air or water. Methods and materials used to be in accoriiance with local building codes and meet the requirements of the LAHJ. j M. J Q Z Z 4 Z O N J J Fa- Z z M Furrece I AV !IIi Figure 53. Furnace over I I I Hanger t trunk duct, two home sec- WJ ASe. m I I BSectim tions LFlex Dud i Field -Installed Flex —� Duct support SVaps I Furnace/Air ! Figure 54. Furnace offset A Sedw Handler B $edm 1 from trunk duct, two home sections Floes i Heat D Tap -Out Cdlar Field -Installed Flex Duct Flex Duct Suppodstape Y-Box Under Furracs I j Figure 55. Furnace over ggedlm � Furrece l Au l= BsecOm CSection l I®I __W___ _ __ I trunk duct, three home sec- lions Heal Dud -- Tap Out Cdlar— FeHLeWled Fla Dud i Figure 56. Furnace offset FvrerxIAV from trunk duct, three home A Sectm BSeaon Harder csecnm sections Tep9utcdla �� y.ereurdw FurereJ Flex Dud Supptxtstrapa YCmreda , For under floor flexible crossover ducts follow the steps below: 1. Locate collars. Locate the metal crossover collars (or V-box) connected to the main trunk duct (or furnace) under the home and remove temporary ship- ping protection. Securing the 2. Install inner duct. Slide the crossover duct inner liner over the crosover col- crossover. Between Step IarN-box as far as it will go. Temporarily fasten the inner liner in place with 5 and Step 6, drill three or duct tape. Install a large nylon zip -tie over the inner liner just above he 'ridge' more 1116 inch holes an around the crossover collarN-box. Apply mastic completely over inter liner equal distance around and and collarN-box (alternately, the mastic may be applied to the colla N-box just below the bottom edge prior to sliding the duct inner liner over it). of the nylon zip -tie. Install 3. Connect duct insulation. Bring the duct insulation up over the zip- ie and #12 pan head screws in above the home's bottom board into the floor cavity. Temporarily d ct tape it these holes, through the ei against the base of the trunk ducal -box. I flexible duct and into themetal crossover collarN- 4. Pull duct wrap. Pull the crossover duct outer wrap over the top of the insula- box. The screw heads tion and temporarily secure it to the trunk ducal -box with dud tape should be against the zip- s. Install zip•tie. Feel for the nylon zip -tie that was Installed over the inner liner. tie. Place another nylon zip -tie just under the first one to permanently secure the crossover duct insulation and outer wrap. 1 6. Trim duct. Trim the crossover dud to length such that the installed pr �uct will be straight with no kinks or unnecessary bends. 7. Connect other end. Follow the same procedure (steps 1 through 5) to con- Cover exposed metal. nect the opposite end of the crossover duct and any other crossove, ducts. Completely cover all ex- posed metal connectors 8. Seal joints. Seal the joints between the bottom board and the crossover dud with insulation. Apply seal- bumped -out access panel, drill maximum one -inch diameter hole(s) half -way they become separated. up the rim joists on each home section, making sure the holes align,and feed Protect cables. Cover all the wire through the hole. I rabies with conduit or other 3. Connect wires. Conned wires via a junction box or snap-connectgr(s) as de- suitable weather -resistant scribed above. i and protective material. 4. Secure wires. Secure wires with staples to adjacent joists or stud within eight inches of junction box or snap-connector(s). 5. Install smash plates. For notched perimeter joists, install steel wire protec- tors (smash plates). 1 6. Sea[ bottom board. Replace insulation and re -install access panes and/or seal the bottom board with tape specially made for that purpose (mpy be pro- vided). The access panel(s) may be temporarily installed near the crossover location or shipped loose with the home. asMat I Figure 58. Electrical crosso- ver floor wires with flush ac- _ _ _ Hole Thmugh Ri n Joist 1 cess panels I i X X T Jundan Be. or J _ I(Joists AIe Wtcned,Steel PRotedom May Smp�nnedor Be Prmided with the Ibme O 1 I I Ba ft tl.d I Figure 59. Floor electrical crossover wires with L' ' ;—�]; t bumped -out access panel Cumeaa fttaveroa (If Nd puWd¢4 P90 Babe Band.) STEP 3. INSTALL ELECTRICAL BONDING f To ensure all metal parts are effectively grounded, electrically bond all Chas is togeth- er as follows (Figure 60): 1. Find lugs. Locate solderless ground lugs on the front or rear frameloutrigger. or headers. 2. Attach wire. Uncoil the bonding wire (#8 minimum bare copper wire) from one side of the home and connect it to the lug provided on the oppc{ ing side. Tighten the set screw firmly on the wire and repeat for any additional home sections. (Bonding Wire may be shipped loose) i Marriage 62 Figure 60. Electrical bonding Line ' of multi -section homes Min. copper �Solderless Lug Each una Wee Hatt of 1-1ome J Q z Z Q Z O H a J J a t- z z KI Corer Pipe Du5 tin Supports (:rvx Ompout Tum 91 To SewedSeptic 3. Test. Conduct a two-part leakage test on the completed drainage follows: • Part 1. With all fixtures connected, and all tub and shower dra fill the system with water to the rim of the toilet bowl through a lure. Release all trapped air, replace tub and shower plugs, b: lures, and allow the system to stand at least 15 minutes. Chet Drain the system. If leaks are found, repair and retest. • Part 2. Plug all fixtures, sinks, showers, and tubs and fill with t lease the water in all fixtures simultaneously to obtain the mat sible drain piping flow. As water is draining, check for leaks. If found, repair and retest. 4. Connect to outlet. Connect the main drain line to the site sewer/s up, using an approved elastomeric coupling (Figure 64). oro Floor} emo-o,n Examples of Connection Pipe and Firings (Not 1 sn�ooma Supplied by the r w—t Manufacturer) Support Strap at Maximum of 4 Feet on Center Cap and Chain Approved Coupler To Site Sewer Hook Up 5. Install supports. Install permanent drain line supports at a distan feet o.c. or less (see Figure 62, Figure 64, Figure 65 and Figure Figure 63. DWI/system rain Dmpout E $low ust Ccz '-'Long TUm Bl Long Tum Tee Wte (SubsitutefrBbov ken-0ul Plug and Pmdde a Full S¢e Cleanoutwhel Required) stem as plugged gherflx- dill fix - for leaks. ter. Re- turn pos- ty are ,tic hook - IN four // Choosing glues. Use only solvents and glues compat- ible with the pipe (ABS or PVC). Follow manufactur- er's instructions. Figure 64. DWV connection to sewedseptic Figure 65. DWV pipe support method Complete the Interior This chapter covers the completion of the home's interior finishes including cellaneous items. v a rer n. UUMrut l r UAKPET (p: 6z) ,. � STEP5 GDMPLETETRIM (p; 67) R STFP`,B 1NCT.0I 1, CIJ161 nn'QC ITC'RRc 1�. FT 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 screws so they do not move when the clamps are removed. Insert' wedges in gaps between walls, and glue and screw to create a tigt tion. 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 114 inch d bead.of adhesive on all framing members and minimum 1-1/2 inch wall screws, nails, or staples at six inches o.c. along panel edges E inches o.c. in the field into framing members. 2. Mud seams. Mud and tape all seams and corners, filling all fasten sions. Follow mud manufacturer's directions. 3. Paint. When the final coat of mud is dry, prime and paint all unfinis sum board to match existing paint color and finish texture. STEP 3. COMPLETE WALL AND CEILING FINISHES 0 walls, ceilings, flooring, trim, and mis- / ,ter / ' / dry- Fastening gypsum. When 2 attaching gypsum board, depress, but do not break Ypres- the paper face with the fas- tener. Breaking the paper gyp- will weaken the connection. Using alternative materials. Obtain the home manufac- ing interior before us- ing finish materials other than those provided with the home. J a Z Z Z O F= a J J Q y z I Install Stabilizing Systems This chapter covers the design and installation of the stabilizing system whicq 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 may also be used to prevent the anchor head from moving laterally in the ground. An anchor, strap, and stabilizer plate (if used) Ogether 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. '., . JICr 1 VCICRIYIIIYC NI➢VpVR LVVN11Vf,W'uI Vol .3 ' ? •+•••• •JVv�,�,, v V STEP 2 DETERMINETIE DOWN CONFIGURATION (p 74) ��,,, = !� s42 1 (jr STEP-3r SELECT ANGtlOR5 (p 74} * '9 • STATE OF a STEP 4*INS`[^u�cLLANCHORS (p 75)' %f�-c� • A'L OP'•��,` ® STEP-51NSTALLSTRAPS(p`76} �h,�yUfVI�LEr'c`� ' `fIGHTEMAND ADJUST STRAPS (p 79) Jun 0a, 1018 - i STEP 1. DETERMINE ANCHOR LOCATIONS Create a sketch of the home plan showing the exterior walls, marriage lines) (if any) Footings, i , // and frame I -beams (this will be similar to the base sketch created in Prepare page 19). I Need for a stabilizing See Table 26 for a list of anchor locations, types, and where they are required. Pages system. The manufactured where the requirements are provided are noted in the last column. home must be secured against the wind by the use As each anchor location is determined, mark it on the sketch, noting important 1 dimen- of an anchor assembly or sions such as spacing between anchors. When complete, this will be the home's tie- an alternative foundation down plan (Figure 69 and Figure 70). system. Where site or other TABLE 26. ANCHOR LOCATION TYPES conditions prohibit the use Wind Zones 11 of the manufacturer's Location Type Wind Zone I and III instructions, a registered engineer or registered Frame Yes Yes 69 'architect must design the erhea4;ysNOW,It'-,� £ ui Y,y-,,1,,,t„„„,s,r,; tabllizing system. Frame No Yes 73 Flood and seismic forces. `VerGea"F,-` _ off"» <,„=s,;''�"�_ u• The stabilizing system requirements in this chapter ShearVertical Sometimes Yes t 73 do not consider flood or _ -s `T!eetitira _ §o e'6ores s'; Y(s'"".,�"'_ 735,„a seismic loads and are not W 1 See intended for use in flood or Frame Yes Yes Supplemental seismic hazard areas. In Tag Uniti; • those areas retain a registered engineer or x '`a. ; �_,. ;F.�.,1, _ . °M��,"'" , z",•._�.',`:''.<. U lem@ntaf- �� registered architect to See design the stabilizing Porch Post Vertical Sometimes Yes Sup 3lemental system. Underground Utilities. Before installation F , . > SaPP��Plemen al_ of an Offset _ see ground anchors, determine Vertical Sometimes Yes that any anchor will not be Supplemental close to any underground Connect any factory -installed sidewall tie -down straps to a ground anchor regardless ©f the wind cables or pipes. Failure to I SIDEWALL FRAME ANCHOR MAXIMUM Up 82'to 2s• — 12T'-0'• 11'L'• �r ,zs m4B ,:. T .'1k-0ts 48•to 6r — 14'-0'• 8•-8•• 25 to 4816 6 10 0 5 ° .:;jc 4$•,it58T,s^:,,` r_ w k" ].4r-6 v ia.:: SF _ Up to 25• • 1 • 4`3i'4 UP,L10 2e+ r'. � r 'Mi c, r„417L v, ::?+ia �OXi .:ry.• ? 25 to 48 1i113 6 xl BE UP to 25• 18-0 264it ® 48'to6r 14-0'• .»,.: 15.6'• _ ..., 8.-0.. • • 25 to 48 13 0 114-6 8E • • t � de la 6T � .: 12A -= ��!•.12�6 7(6 , ® Up to 25' 12-0 a....� 11-0 �19-0 µ� 25 to 48 13.6 15.6 B.6 7'7�r�.��-- a • � O P ® UP to 25 15-0 123.6 ;20-0 48 to 6T 15 0 117-0 8-0 More than tYrUptd2S� _yii ?r 1201 w1716t vY `V e�9-6, e.'4Y� • to 25 1o48 id 0 0 110 8-0 ' • � t`.x48.10 6�`�s..' rq, 13-0� . 1 3S}$-0 j � 2 °� .7i8c1 • r5 .Y �'-��. 26nrfa�f {�'. J.na.{m.`•F.pry .+ n.ca..,�„ zz � �iy.t .�! 48to 6T 9 6 25 {tov 48 10 0 ` Indicates a configuration that will require an additional strap connected tolthe far beam (see Figure 72) .•o. 02 2 ' STATE OF i,nnO,l Jun 08. 2018 70 J Q z z a z 0 a J J F z z 72 29. WIND ZONE III SIDEWALL FRAME ANCHOR MAXIMUM Up to 48'to 6T .1 15 r{{•• 3'-0'• 25'to 40' 16'.0•• g.S• 41 Up to 25 I4'di" NA More than t.-.x 25r1oi4,B: s.i"" ✓ ..._ ..#`[4Y„ _r "` NA4 .^...... 48'to 67' NA T-T to 5 0^.a 3A :v, tine 25 to dB' i ® 'wn Up l0 25' .3.-0° +;...; 48 to 6T 4•.0• • i5.6• • 3'-0' 2TOW 3 0 5-0 NA 25 to 46 3 0 5 0 NA Up to 25' 5'-6' 5'E' 3'-0' 48'to 6T 4'-0 3'-0' More than "W"1'i"c2.5^1vP' a 4-6-i.Y.a'°.5"s.. rf=""N�T>✓ -�: 25 to 48 3NA -6 �3-6 9'.0 Up to 25' '26 �p 45 .tcS1 6.,4 $:..f ... .*''� ail. F:"^F.. _._'t>'•,.:�Yo.' 48 to 67' 4'.0• ; , ''t7prez6 "ir - s -6.1or 25 to 48 4 0 I _ Indicates a configuration that will require an additional straD connected to the far beam (see Fiaure 75 ,, •'`ma44 c y,, , rA� L;s,'•.,�. • �; , y. • D. 2R2 STATE OF �, FS Ott \ Jun 08, 2018 Single anchor need only develop 3150 Its. alowable lead. Labeled G -1 straps —Both steps maybe fastened ro a single anchorhead. Labeled G - 2 abates Straps must be fastened b indNEuai j anchors. W I � No stabilizer plate is required for ground anchor at labeled G-strap along m2lingline. Labeled G-1 Straps Labeled G-2 Straps TAG UNIT ANCHORS See supplemental pages if this particular home has a tag that requires anchors. PORCH POST ANCHORS See supplemental pages if this particular home has a porch that requires OFFSET UNIT ANCHORS See supplemental pages if this particular home has an offset that requires Figure 71. Marriage Line Vertical Anchors vertical . , /, When to install marriage line anchors. Anchors rs. along the marriage line must be installed prior to the second half of a multi - ors. section home being set. STEP 2. DETERMINE TIE -DOWN CONFIGURATION I There are two primary tie -down configurations: the near beam and the far beym meth- ods. If the anchor spacing selected in the appropriate anchor table (Table 27j Table 28 or Table 29) 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 bglow. • Near beam method. For all Wind Zones, connect an anchor strap t anchor head to the beam closest to the anchor. In addition for Wind and III, connect a vertical strap from the sidewall of the home to the head using a double -headed anchor. • Far beam method. For Wind Zone I connect anchor straps from th head (using a double -headed anchor) to both of the home's main fr beams. For Wind Zones II and III connect one anchor strap from IN head (using a double -headed anchor) to the home's far beam and c sidewall of the home. Near Bean e-Dd veTcal sl wo Tle-Down lWn zone It aM 111 ONy) Near Bwam Frame Tlellenn (Omit In Wed Zca. II and np verimm sllew'dl Tie -Omen (Wed zees II and nl ody) Ground Arch Flow the es II fat Ntlr: 1!• p anchor .`yy.i rye anchor le to the' o. 0242 ' IF t+•: STATE OF ; <r: .f �� RMi�ID®W®fWM0T0 Age ........ `•` I*•, Q. ��y', a140N ' \ i BeamTlem Added When Noar . Jun 08, 2018 IaM I Exaeedeeo'Aslndwixt STEP 3. SELECT ANCHORS Use the torque probe results from Prepare the Site, STEP 6. DETERMINE ANCHOR HOLDING CAPACITY (p. 17) and the anchor manufacturer instru( select the type and length of anchor to use. The installed ground anchor size must be listed (i.e. approved) for the soil class. 74 Figure 72. Lateral tie -down con- figurations Stabilizer Plate Configuration i Stabilizer plate configurations (Figure 74) 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 available in a variety of widths. Choose the widest plate that can be driven into the soil to maximize resistance to movenjent. The LAHJ may have stabilizer plate requirements. I Install anchors with stabilizer plates as follows: 1 1. Locate anchor. Select a location for the anchor under the home but within six inches of the exterior wall (Figure 75). Avoid locations that will i'ttertere with skirting. oil T �4 lt�pt tt p�y�, 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 approximately16 inches if using a 60 inch long anchor. Install the anchor at about 15 degree; 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. j 4. Complete anchor installation. Screw the anchor the rest of the way i into the ground. The finished anchor must be installed to Its full depth. VERTICAL ANCHORS I To install vertical anchors, screw the anchor into the ground directly under thy, strap at- tachment point on the home until the bottom of the anchor head is flush with aground or no more than one inch above grade. STEP 5. INSTALL STRAPS Follow the instructions below to connect straps from the home to sidewall fratpe, end wall frame and vertical anchors. Always protect straps at sharp comers including around I -beams with radius clips or other methods (Figure 76). Radius clips may be fabricated from 26ga (min) b 1 1/4- inch Wide galvanized steel strap formed to fit around comers. _ Longiwdal Back t Pmtad Top and Bottomof Beaml/ 1-Beam N S"PiswrappW Around!Beam 76 Figure 75. Determining an- chor and stabilizer plate loca- tion @Soil depression. Do not locate anchor heads in soil depressions where water may pool. a,aa ran r: nr� ' e. 02a2 STATE OF •yQt� .4 O R ip rnuaaP Jun 08. 2018 Figure 76. Radius clips i i i i 1 7 OInsert the tension bail Into he °O p lace the strap through the slotted anchor head and loosely attach shank of the tension boll and herd the hez nuL up to 90'. OOnce tensioned to lhepointthat counter -clockwise resistance appears, use a ST open end wrench to hold aiesquaieneck while repositioning the ISMS' tensioning wrenchtoconOnue tensioning. Repeatesregdred. O7 Once fully tensioned, align the square neck of thebolwilhthe square recess in the anctorhead and tighten the hex nut. This will draw the two togetherand lock the system Into final position. Using a 15116" socket or open end wrench, rotate clookwise,wapping the strap around the tension bdL If approved by therranufactwa, double head anchors may be used for both diagonal and vertical tie -down strap lensloning.Tenslon the diagonal tie -down soap first. Follow Steps 3 through 7 to Insist straps to anchorhesd. 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 boll to move the anchor head. Continue pulling the strap until the plate moves a small amount (about 112 inch). This is called packing the plate and it will yield the strongest resistance (the bottom of the anchor head should be maxl6rn 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' 80). 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. W., Figure 79. Procedure for connecting the strap to frame and anchor 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. r • 0 .0242 �'a t STATE OF Cr °°eluet�e°• Jun 08, 2018 STEP 1. CONNECT ELECTRICAL SERVICE The home is designed for connection to an electrical wiring system rated at volt AC. All electrical field work must be done by a licensed electrician or off approved by the LAHJ. FEEDER WIRE AND EQUIPMENT SIZES The current rating (In amperes) of the home can be found on the tag located outside next to the feeder or service entrance, and on the electrical distributii Using this information, determine the required feeder wire size from Table 3: sizes are based on an ambient temperature of 86 degrees Fahrenheit and di voltage drop into consideration. Acceptable conductor types are: RHH, RHW, RHW-2, THHN, Tli THW, THWN, THWN-2, XHHW, XHHW-2, SE, USE, and USE-2. TABLE 32. ELECTRICAL FEEDER WIRE AND EQUIPMENT SIZES FOR f PER, ALUMINUM OR COPPER CLAD ALUMINUM CONDUCTORS person n the i panel. These tot take ALL WIRE SIZES ARE AWG UNLESS NOTED ! 50 35 NA 1 #4 #8 #10 #8 —4/4 .z 150 115 10xl2x4 1 1/2 #1 #2 #6 I #6 'Wuf S..rY.Ww'Y+.nl rI A�,5'<�'r � 7� .p <g W' Gl3-SY^`}+�'v^' Na+ ^vt�f�a �i 'Y�v •. .;%a� 225 158 10xl6x4 2 310 I 2/0 #4 04 _ t'"�''IL .�';U 50 35 NA 1 1/4 #4 #4 #8 #6 150 115 10xl2x4 2 2/0 2/0 I #4 #4 : WINE' r&" ; 225 158 10x16x4 2 1/2 250 kcmil 12501 cmd I #2 I #2 Nfd c i far U7kc�rF%�C ram,-. # m a--Ot :� i Zr 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. ServldeErtry Main Pang (May Be Above Or B.T.GmcA) EmAcsure Meter y UEliry — Century Meter EnCawe Bonding sued NotInstalled Disconnect Grounding U5 �2'Cond6t (Fused)_ To Chasid Metallic Conduit OrRitnBsTo Be Effectively GradkedTOdTo � Equipment Gmml Blood --HOT'ToA OrB Red -'HOT' ToAOrB White To Neutral Bm Bar Ground To Equipment GmuH Man Pan. ben®Envy Endo— ("..IX Be. Gmure) dY v G mpry Me.,Erd. M¢rEntloa» �JJ—J Bondop sea, Ingalkd By MenWaqure, Gmurding WB — 2-CgMua To gads¢ To Gwn6,g Pu] To Man BO MBEff-five t� .ndedT EdTa lyGmunEaO TO EOPgneM BMd-'XOTaAOrB Ground Ground Red - 9p7TO W MB TO Neut21 B. Bat l B. In all cases, a grounding electrode conductor and a ground wire must be installed ac- cording to the following specifications: 1. Grounding wire to be per Table 32 provided by the manufacturer. If rpanufac- turer provides a minimum 1/2 inch EMT or conduit raceway, the 96 minimum bare copper wire is provided by the retailer for installation. 1 2. The clamp connecting the grounding electrode conductor to the electrode shall be suitable for direct burial and located flush or below ground Ie�hel. 3. Use a listed 518 inch diameter by eight foot long iron electrode or nonferrous rod of at least 1/2 inch diameter by eight feet long for grounding (largbr sizes may be required 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 riot to ex- ceed 45 degrees from vertical or buried in a trench that is at least 2-112 feet deep. FIELD INSTALLED METER BASE i When a meter base is installed in the field, Figure 84 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 82 Figure 82. Electrical feeder connection when meter has a disconnect installed (typi- cally more than 6 feet from service electric panel). Figure 83. Meter base wiring when there is no separate disconnect installed (typically within 6 feet of service elec- tric panel). 5. C� HS Optional Muse 2 (Not Supplied) Connect To T Hera For Water System Test Locate Water Riser Undemeathor — Adjacsnl to Home Service Correction (Not Supplied) Mandatory ShuhOtl Valve (Not Supplied) Install water heater discharge drain. Inspect the drain opening on heater to ensure that it is clear of any obstruction and directed down the home Is to be installed on a basement or enclosed crawlspace, pipe connecting the discharge from the water heater temperature an sure relief valve may be installed to the outside or to a sump. Install water heater drip pan drain. Assure that the drain for the w er Grip pan does not terminate under the home. Using the materials and the accompanying instructions run a drain line from the water hi pan through the wall or floor to the exterior of the crawl space. Term line between six and 24 inches above grade. (Figure 86). Make the tion point rodent proof. Figure 85. Water system connection water ar\ ard. If train pres- '*Avi*V' Using check valves. Install a check er heat- valve on the water inlet to ovided prevent water system Ater drip drainage in the event of a ate the loss of water pressure from ,rmina- 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. Figure86. Water heater drip pan and drain water, disconnect the air supply and close the water inlet valve. 9. Pour anti -freeze. Pour an antifreeze solution into all drain traps, sinks, tubs, and toilets. Be sure that the antifreeze is safe for the P-traps. STEP 3. CONNECT GAS SERVICE CONNECTION If the home uses natural or liquid petroleum gas (LPG, also known as propane ter or space heating, cooking or other appliances, follow the procedure descril low: 1. Inspect vents. Assure that all exhaust vents on gas -fired equipment curely connected and that roof jacks and stacks have not come loos( transit and they are properly installed. 2. Review appliance instructions. Review each appliance manufactu structions before the home is connected to the gas supply. Most gas antes are typically configured to operate on natural gas. If the gas si be LPG, consult the appliance manufacturer's instructions to determ changes need to be made. For homes located above 2,000 feet, apt may require a different orifice. 3. Remove cap. Remove the protective cap from home inlet pipe and full flow shut-off valve at the supply inlet (Figure 87). 4. Install regulator. The gas piping system is designed for a pressure least seven inches of water column (4 oz. per sq in or 0.25 psi) but r than 14 Inches of water column (8 oz. per sq in or 0.5 psi). If gas fro supply source exceeds, or could exceed this pressure, install a regu quired by the LAHJ. 5. Connect supply. Using matching threaded fittings, connect the go, - the inlet side of the shut-off valve. 6. Close valves. Close all valves at appliances prior to opening the in valve. Full Flow Shutoff Valve Required (Supplied By �] Others) / Union (Supplied By Others) Source of Gas and for we- sd be- Installing gas lines. Only qualified professionals may are se- connect and test gas ser- during vice. Derated fuel. Gas utilities in Ws in- high altitude areas may 3ppli- have already compensated ppiy will the fuel to provide a clean re what burn at high altitudes. If the lances fuel has been derated, do not change the odfice for istall a the appliances. Check with the local gas utility for spe- cific directions. hat is at )t more iany ator if re - to supply 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 temperature g will re- main constant. i Piping only test (all appliances isolated) 1. Isolate appliances. Isolate all appliances from the system by closi�g all ap- pliance shut-off valves. 2. Attach gauge. Attach to the home's gas inlet a mercury manomet 'r or slope gauge calibrated in increments of not more than 1(10 lb. I EZ Figure 87. Gas service con- nection 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. pors. If the tank is fixed to the home, provide for filling and draining from the outside. I • 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. I OIL SYSTEM TESTING j Before operating the system, fill the tank to capacity with the fuel to be burned and vis- ually check all joints in the system for leakage. Replace (do not repair) parts t'h� at leak. m Prepare Appliances and E9 I uipment This chapter provides instructions for installing and/or preparing appliances aqd other equipment. While the items below can be completed in any order, the last Item, CONDUCT ELECTRICAL TEST{ must be done last. Follow the Steps below: IiqstALUAiWcoNbiTjOkE-R qRHgq Pump:(p'.,-89) InstAll Remote Heating and*600llngEQUIPMENT (p<g0) -�PREPA!Rt-.VENTILATIOW SYSTEM'(0: 91)� - PREPARE FUEL ABURNING 'APPLIANCES 99 H 414&Alkk�lkiT KITCHEN BATH APPLIANCES FIXTURES 9Q; g5y: INSTALL EXTE RIOR 41ii IOR LIGHTING (p: 96) INSTALL AIR CONDITIONER OR HEAT PUMP (if applic ble) 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 (ma I y be in- Use listed appliances. All cluded with the data plate) to confirm that the home is suitable for installation applicable appliances must of central air. If so, note the air distribution system's rated duct cElpacfty (BTU/hr), any equipment sizing guidance provided by the manufacturer and be listed or certified by a nationally recognized test - information provided to calculate the h ome's heat gain. ing agency for the applica- i 2. Select equipment. Select equipment with a rated heating capacity (E TU/hr) tion for which the unit is in - not exceeding the maximum indicated on the home's data plate and d rated tended and installed in ac- cooling capacity sized In accordance with Chapter 28 of the 1997 ASI iRAE Handbook of Fundamentals or ACCA Manual J, Residential cordance with the terms of its listing or certification. Cooling I oad, 8th edition. Information needed to calculate the home's heat gain can be bund on Properly sizing equipment. the home's comfort cooling certificate. Choose equipment with a minimum cir- cuit amperage (found on the equipment rating no than the Oversized cooling plate) greater branch circuit rating of the exterior air conditioning receptacle (indicated on equipment can lower energy efficiency, reduce the adjacent tag), if present. , I 3. Install A -coil. When installing a cooling A -coil in a down -flow furnacelthat in- comfort, shorten equipment life, and may cause corporates a fresh air intake duct, position the duct In the furnace cavity ac- moisture problems in the cording to the furnace manufacturer's instructions. I home (including potentially damaging the home's EVAPORATIVE COOLERS structure). Sizing guidance is provided by the Evaporative Coolers must be listed or certified by a -nationally recognized testiqg agen- cy for the application for which the unit is intended and installed in accordance.with the Manufactured Housing Research Alliance Cooling terms of its listing or the equipment manufacturer's instructions, whichever is ore re- Equipment Sizing strIctive. Guidelines available at Z5 Z I I I I I I I I I I I I I I I I , I I 48• In. O.C. Alrcon iUomMa, Heating Equipment and Ground to Ce41n. PREPARE VENTILATION SYSTEM j Prepare the whole -house ventilation system according to the ventilation system manu- facturers instructions. Confine 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 ventila- tion intake ducts to become kinked or restricted, forming a trap (Figure 89). , PREPARE FUEL -BURNING APPLIANCES WATER HEATER The water heater discharge and drip pan drains should have been installed Utilities (p. 83). In homes with direct -vent water heaters (that utilize gas, oil, or other combustibn fuel), and where the water heater is not independently vented to the exterior throuck a grilled opening, provide combustion air either —1) from outside the home and through the skirting, or 2) through the roof via a double -walled flue pipe. Providing air from the outside may be accomplished with either of two methods: a. Using a combination air duct system that is listed for use with the water heater Installed in the home and installed In accordance with the instructions provided, or j b. Using the termination through the floor as constructed in the factory. The installation instructions for the water heater must allow this method, tle termination must be free of any obstructions such as brush, and the I ventilation through the skirting must provide a minimum of one squarg inch for every 4000 Btuh rating of the water heater or a minimum of 15 square inches. Figure 88. Remote unit damperlocations Figure 89. Ducts connecting exterior heating and/or cool- ing equipment to the home i ' /, Choosing pipe lengths. The appliance manufactur- er may designate the length of the pipe run based on the pipe diameter and the number of turns in the pipe run. Venting exhaust systems. Exhaust vents must extend to the home's exterior through skirting. Termina- tion of the dryer exhaust underneath the home can cause condensation and moisture damage to the home. Lint and dust accu- mulation can ignite, causing a fire. The exhaust system must not contain reverse slope. 91 PREPARE SMOKE ALARMS The home has several factory installed smoke alarms that are wired to a 120-Volt circuit. If the home was designed for placement on a basement, an additional Alarm is provided for installation at a pre -wired location under the home. Connect the Upsemenl smoke alarm to its circuit and test all alarms as follows: I 1. Check circuit. Ensure that electrical power to the home is activated and that the smoke alarm circuit is on. A green light illuminated on the cover of the alarm indicates the alarm has 120V power. i 2. Test alarms with AC Power. Verify that backup batteries are installed and any protective tabs have been removed. 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 any alarms that do not sound with the same brand as those installed elsewhere in the home and retest., 3. Test alarms with DC Power. Disconnect the alarms from the AC po(ver source (trip the appropriate breaker in the panel box). Repeat the testing in step 2 for every alarm. If any alarm emits a periodic "chirping" sound this indicates that the batteries for that alarm should be replaced. M 4. Restore power. Reconnect the alarms to the AC power source by supitching on the appropriate breaker. , PREPARE FIREPLACES Install chimneys, chimney flashing and roofing, fireplace combustion air inlets ;and hearths according to the manufacturer's Instructions and the procedures desctbed below, I CHIMNEYS Fireplace and wood stoves may require on -site Installation of additional sectiops of approved chimney pipe, a spark arrestor, and a rain cap assembly. Follow the! manufacturers instructions and the procedures described below: 1. Remove coverings. Remove protective materials covering the roof flashing and any foreign material from the installed part of the chimney. i 2. Install chimney pipe. Assemble and seal the chimney per the fireplace or wood stove manufacturer's installation instructions and if there is a conflict between the instructions and the figure, follow the instructions. To asfure sufficient draft for proper operation, extend the chimney at least three, feet above the highest point where it penetrates the roof and at least two feet higher than any surface within 10 feet of the chimney (Figure 92). Ule additional section(s) of chimney pipe (not provided) if required by local I code or if the site has obstructions within 10 feet of the chimney. ! 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 sot in as- phalt cement. Secure flashing to roof deck at top two comers 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. I *1 COMBUSTION AIR INLETS Combustion air inlets provide combustion air through the floor or an exterior will to a i // , combustion appliance. If through an exterior wall, site installation is not required. If through the floor combustion air must be provided from outside the home and �hrough Installing combustion air the skirting. Using a combustion air duct system, as shown in Figure 91, that Is listed for use with the fireplace provided with the home and installed in accordance' kith the inlets. Do not install the combustion air inlet such instructions provided. I that material from the Locate the inlet damper above expected snow levels. (Contact the LAW for snow hearth can drop beneath levels). the home. Follow the fireplace manufacturer's instructions in all cases (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. li 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. i COOKING APPLIANCES Installing exhaust ducts. Route exhaust ducts so If the home is provided with a range, cook top and/or grill containing its own e4 aust they do not terminate be- system that penetrates the floor, complete the exhaust system as follows: i neath the home. t. Remove covers. Remove the cover on the factory -installed exhaust pipe pro- truding from beneath the floor near the appliance. 1 2. Install termination fitting. Secure the provided termination fitting at the outside edge of the floor. i 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 the 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. f REFRIGERATOR L . Prepare the refrigerator as follows: • Remove straps, blocks, or other securement devices used for shippl7g and patch any resulting marks on floors or walls. I • ' 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 developed. i 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 j manufactured homes and follow all applicable local codes.` 4 I i Lighting installation. A INSTALL EXTERIOR LIGHTING i ould electricianingBefore qualified lighting. con - install lighting. Before con - Install exterior lighting according to Figure 94 and the following: necting lighting, disconnect 1. Remove cover. Remove the screws and cover from electrical junctiob box. power to the lighting circuit. 95 wl e r end VM Ring (It Rewired) TEST ELECTRICAL SYSTEM After completion of all electrical wiring and connections, including crossovers! appli- ances, lights, and ceiling fans, inspect and test the electrical system as follows: 1. Fill water heater. Fill water heater before turning on power to the home or switching on the circuit breaker. 2. Test continuity. Before turning on the electrical power to the home„conduct an electrical continuity test to ensure that exposed metallic parts of ta home and the chassis are effectively bonded. Check continuity as follow: • Between chassis frame and metal gas piping i • Between chassis frame and metal water piping (if any). % I • Between chassis frame and metal raceway below electrical panel box • Between one riser of metal heat duct and convenient ground 1 Investigate and correct any loss of grounding continuity. NOTE —Continuity is not required on metal inlet of plastic piped water system. When plumbing fixtures such as metallic sinks, tubs, faucets and shower ris- ers are connected only to plastic water piping and plastic drain pipintq, continu- ity to ground is not required. i 3. Test operation. After turning on the electrical power to the home, conduct operational tests of all devices (except water heaters, electric ranges, electric furnaces, dishwashers, clothes washers/dryers, and portable appliagces) to demonstrate that they are connected and in working order. Install light bulbs if not already installed and check fixture for proper operation. Correct any de- fective situations discovered. t 4. Test receptacle polarity. After turning on the electrical power to th4 home, conduct electrical polarity checks on all receptacles to determine that there are no conditions of reversed polarity, open grounds or shorts. Repair or re- place any defective receptacles or wiring. I, Figure 95. Wiring for a ceil- ing fan or chain -hung light fixture with a maximum weight of 35 Ibs 4. Repair tears. Repair any voids or tears in the retarder by patching with like ma- terial, maintaining a minimum 12-inch overlap and sealing the joints. STEP 3. INSTALL SKIRTING Skirting is any structural or non-structural perimeter crawlspace enclosure. C9Implet site -built structures (see STEP 5. COMPLETE SITE -BUILT STRUCTURES, p.101) that abut the home (such as porches, attached garages, and steps) prior to In$tallin. skirting. j TABLE 33. SKIRTING SYSTEM MATERIALS SPECIFICATIONS Skirting must be of weather -resistant materials or provided with protection against weather deterioration at least equivalent to that provided tjy 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 of materials naturally resistant to d�lcay and termite infestation or pressure -treated. j To design and install skirting, comply with the skirting manufacturer's instructions (if provided) and the following: j 1. Configure skirting. Run the skirting along the perimeter of the home's heat- ed, conditioned space. Do not enclose with skirting areas under recessed en- tries, porches, or decks (whether constructed as part of the home or, added on site) unless skirting is of the fully vented type and installed so as to allow wa- ter to freely flow out from under the home. I 2. Fasten skirting. Attach skirting to the home in a manner that preven)s water from being trapped between the siding or trim and the skirting or forcgd up in- to the wall cavities trim to which it is attached. Allow for frost heave hen in- stalling skirting in areas subject to frost. I 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 ar- ea to equal at least one square foot for each.150 square feet of uncle, -floor area (or for each 1,500 square feet if a ground moisture retarder is installed according to STEP 2. INSTALL GROUND MOISTURE RETARDER,Ip. 98). Place vents as high above the ground as practical. 4. Install access. Provide an access opening not less than 18 inches vide 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, corIpbustion air inlets, and air conditioner condensation drains through the skirting to the outside and terminate each as instructed in the sections of this manual corre- sponding to each appliance. j crawlspace foundations in areas where radon is com- monly found in the soil, continue the moisture re- tarder up the perimeter wall at least 12 inches, sealing the edges and between the seams with mastic. i : / A Avoid backfilling against skirting. Do not backfill against non-structural skirt- ing. in1!rVA A Skirting and decks. Homes with open slatted decking (recessed entries, porches, or decks) must have skirt- ing or foundation behind these areas to prevent wa- ter from draining back un- der the home. Freezing climates. Skirting should not be relied upon to prevent freezing of the plumbing underneath the home. Neither should skirt- ing be relied upon to re- duce the need for frost pro- tection of the footings as described elsewhere in this manual. Ventilation importance. The area under the home must be properly ventilated to minimize the accumula- tion of moisture. Failure to provide adequate ventila- tion may result in moisture migration into the home it- self resulting in high hu- midity, formation of con- densation, and even ice on cold surfaces. �`,rur r: rrrr t%klf. s X STATE OF ; <r: aen en�a� Jun 08, 2018 rh Fasteners (see table) Opening wall framing Glass 2 X 6 Lumber Section B-B l layer 15132"sheathing 32116 span rating 1 layer 1-1/8" sheathing 48" cc span rating 1 B lumber (see tat 41 II II•i I'll II I I. B :+ III II II•S i.11 II 1 I.F I ,y L-L___ _______J Window width ' 2 layers I V layer 15132" sheathing' 20dlnail: , 32/16 span rahn9 at I. o fx' fa')5er' :'.A r 0.1031n xl4 ( ) a�-=i2332 slat Ing:f, na 2 layer at 4 oc1-`/ span;.ratli�+'g`;cx`i 40d�nail: along edges k5`., 21a layers y (0.1;.X4, 1-1/8" sheathing at pc 48" oc span rating alongiedg Figure 97. Wind Protection ' Shutters Constructed of Lumber i•tnrn:4p c e • o STATE OF ��''o fCNt.� Erg ;.•' , 'dilllrrlll•` Jun 08, 2018 2x6 #2 SPF 2x6 #2 SPF STEP 5. COMPLETE SITE -BUILT STRUCTURES E Install site -built structures such as steps, landings, garages, awnings, carports, breezeways, porches, decks, railings, sheds, and utility rooms according to nianufac- turer's instructions (if any), in compliance with all local regulations including fie separa- tion and electrical requirements, and according to the following: • Do not obstruct any of the two required exit doors from the home. f # • Construct site -built structures to be structurally independent unless Orovided for In the design of the home (instructions Will be provided by the m�nufactur- er). The only connections to the home should be for appearance orlwater drainage and should not transmit any loads to any part of the home. • Do not damage the integrity of the home's structural or weatherproo ng sys- tem. Seal any weatherproofing connections between the site -built structure and the home and flash any roof connections. • Utilize only GFCI outlets for site -built structures. i • Install and test smoke alarms in any site -built structures according to local code. I • Any site built structure must provide its own heating and cooling, light and ventilation, and egress means independent of the manufactured hor(te. 20d nails (0.131" x 4') 3 each at each end of board i I Designing site -built struc- tures. All site -built struc- tures must support their own dead, live, and wind loads and must not transmit any loads to the home's structure. All car- ports, awnings and patio covers should be free- standing. 101 �`s, P-repareoHome fior: _Z Occupancy % ;, Complete Installation Checkljist USE THIS CHECKLIST TO CONFIRM THAT THE LISTED ASPECTS OF 'HE IN- STALLATION ARE COMPLETE AND CORRECT. ! FOUNDATION i • Footings properly sized and, constructed for the soil conditions • Pier spacing per data plate and applicable table and roof load zo; e • Piers property constructed and vertical i • Perimeter blocking installed (if required) j • Piers each side of large cll openings • Centerr l line piers installed att columns • Shims in place and tight • ANCHORS Limits of the checklist. This t checklist is not all-inclusive. • Approved anchors are used j Some homes have • Anchors are installed at correct angles important features not listed • Anchor spacing and installation correct here. Completing this checklist does not • Longitudinal ties installed (If required) j guarantee that all • Anchor straps are tensioned it i installation requirementshave been met. UNDER THE HOME Moisture retarder installed I • The ground is property 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 • No holes or tears In bottom board • Skirting has been installed per manufacturer's instructions with paper venting and provision for frost heave i • Dryer vent, range/cook top exhaust, water heater temperature and pressure discharge drain is unobstructed and directed downward, water heater drip pan drain and AC condensate drain installed to perimeter of crawlfspace. EXTERIOR i Z • Shingled roofs are free of visible damage and serious defects andithere are -ii no missing or loose shingles ! D r • Shingle close-up and ridge cap have been completed per applicable details D • All hold down straps on shingled roofs have been removed and staple holes 25 have been properly sealed i z • Penetrations at roof stacks, vents and chimneys have been propeoly sealed D • Siding and trim is free of gaps, voids, missing fasteners, damage, and Z serious defects. All seams are sealed and hardboard edges are sealed D • Drip edge and fascia is installed free r properly and of damage and serious defects • Gutters and downspouts are installed properly such that water is dvented away from the home , • Trees and bushes have been trimmed to prevent brushing againstkhe home in windy conditions or under snow loads } • The HUD label is exposed, Intact and legible j • The exterior of the home and immediate surroundings is clean, clear of 103 • Fireplace chimney stack extension and roof cap have been installed in accordance with the manufacturer's instructions i Air conditioner/heat pump is sized properly MISCELLANEOUS I • Installation/anchoring certificates or seals have been issued and Installed (if required) !S • Owner's and operation manuals are available for all appliances i • This installation manual is left with home 105