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Home My WebLink AboutengineeringWOLTERS ENGINEERING ENGINEERING, DRAFTING, CONSULTING Wednesday, July 24, 2019 Richard McKuhen Extreme Metal Fabricators 2160 SW Poma Drive Palm City, FL 34490 Re: 7407 Ft. Walton Ave — Roof Installation Mr. McKuhen, FILECOPY 15211 97th Road N West Palm Beach, FL 33412 Ph/Fx: (561) 225 —1982 lO - a 41� RECEIVED JUL 2 9 2019 ST. Lucie County, Permitting I have reviewed the information you forwarded concerning installation of a metal roofing system over a single layer of existing asphalt shingles on the above referenced project. The requirements for installation of metal panel roofing systems are listed in Section 1507.4 of the 2017 Florida Building Code. Existing Roofing is covered by Section 1511, with Section 1511.3 reading as follows: 1511.3 Recovering versus replacement. New roof coverings shall not be installed without first removing all existing layers of roof coverings down to the roof deck where any of the following conditions occur: 1.Where the existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing. 2.Where the existing roof covering is wood shake, slate, clay, cement or asbestos -cement tile. 3.Where the existing roof has two or more applications of any type of roof covering. 4.When blisters exist in any roofing, unless blisters are cut or scraped open and remaining materials secured down before applying additional roofing. 5.Where the existing roof is to be used for attachment for a new roof system and compliance with the securement provisions of Section 1504.1 cannot be met. If the existing roof does not have any of the issues listed above, and if the panel system is installed per the requirements of the its product approval and Section 1507.4, then installing your metal panel system over a single layer of existing asphalt shingles is an acceptable application and will meet all the requirements of the 2017 Florida Building Code. If you have any questions or need more information please contact me. Thankyou IIlE.2.4 2f11c l {� (ZING IN IMPACT t?1�515TANT CUFTAINWALl.5, 5TOF�FPUN5, & WINPOW5 0 WOLTERS ENGINEERING ENGINEERING, DRAFTING, CONSULTING 15211 971h Road N West Palm Beach, FL 33412 Ph/Fx: (561) 225 —1982 Wednesday, July 24, 2019 Richard McKuhen Extreme Metal Fabricators 2160 SW Poma Drive Palm City, FL 34490 Re: 7407 Ft. Walton Ave — Roof Installation Mr. McKuhen, I have reviewed the information you forwarded concerning installation of a metal roofing system over a single layer of existing asphalt shingles on the above referenced project. The requirements for installation of metal panel roofing systems are listed in Section 1507.4 of the 2017 Florida Building Code. Existing Roofing is covered by Section 1511, with Section 1511.3 reading as follows: - 1511.3 Recovering versus replacement. New roof coverings shall not be installed without rust removing all existing layers of roof coverings down to the roof deck where any of the following conditions occur: I.Where the existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing. 2. Where the existing roof covering is wood shake, slate, clay, cement or asbestos -cement tile. .).Where the existing roof has two or more applications of any type of roof covering. 4.When blisters exist in any roofing, unless blisters are cut or scraped open and remaining materials secured down before applying additional roofing. 5.Where the existing roof is to be used for attachment for a new roof system and compliance with the securement provisions of Section 1504.1 cannot be met. If the existing roof does not have any of the issues listed above, and if the panel system is installed per the requirements of the its product approval and Section 1507.4, then installing your metal panel system over a single layer of existing asphalt shingles is an acceptable application and will meet all the requirements of the 2017 Florida Building Code. If you have any questions �odrdneed more information please contact me. Thank you, `>>gj FENS'-.�s'fe No 62354 Scott o ters FL PE# 62354 > -� I¢./ ®.1-% n ATM n= •L/a MV I: I_71 IN Ir•;' ?,Cr 1�F748i1S1,• W CIUKA M /4l. 7'0F'EFF,ON1" , & VVIN1!20`N5 EVALUATION REPORT OF METAL SALES MANUFACTURING CORPORATION `26 GA. CLASSIC RIB PANEL' FLORIDA BUILDING CODE 6TH EDITION (2017) FLORIDA PRODUCT APPROVAL FL 14645.9-R3 ROOFING RECEIVES METAL ROOFING J U N 2 4 2:01".9 ST. Lade Cou&V- PPriYtit iY1� Prepared For: Metal. Sales Manufacturing Corporation 545 South 3rd Street, Suite 200 Louisville, KY 40202 Telephone: (502) 855-4300 Fax: (502.) 855-4290 Prepared By: Bala Sockalingam, Ph.D., P.E. Florida. Professional Engineer #62240 1216 N Lansing Ave., Suite C Tulsa, OK 74106 Telephone: (918) 492-5992 FAX: (86.6) 366-1543 This report consists of Evaluation Report (3 Pages including cover) Installation Details (1 Page) o®�tioe�aoe�s®° �S0CKAL�N°°°i� d NO 62246 * : CC off'.• STATE OF ; •Cu o o FtAx boo a q.2o "7 File Copy REVIEWED FOR CODE COMPLIANCE ST. LUCIE COUNTY ROCC Report No. C2182-9 Date: 9.9.17 • • FL 14645.9-R3 C2182-9 9.9.17 Page 2 of 3 Manufacturer: Metal Sales Manufacturing Corporation Product Name: Classic Rib Panel Description: 36" wide coverage with (5) 3/4" high ribs Materials: Min. 26 ga., 80 ksi steel or min. 24 ga., 50 ksi steel. Galvanized coated steel (ASTM A653) or Galvalume coated steel (ASTM A792) or painted steel (ASTM A755). Deck Description: Min. 19/32" thick plywood or min. 3/4" thick wood plank (min SG of 0.42) for new and existing constructions. Designed by others and installed as per FBC 2017. Deck Attachment: 8d x 2.5" long ring shank nails or #8 x 2" long wood screws @ 6" o.c. (Minimum) in the field and edges. Designed as per FBC 2017. Underlayment: Minimum underlayment as per FBC 2017 Section 1507.4.5.1. Substrate (optional): Min 1" x 4" No. 2 SYP wood purlins over min. 19/32" thick plywood deck fastened to supports at maximum 24" o.c. Wood purlins shall be fastened to wood rafters with (2) #9 x 3" long wood screws. The wood purlins will be spaced same as panel fastener spacing along panel length. The wood purlin, purlin to the rafter connection and rafters must be designed by others to the carry the load imposed on the panels and installed as per FBC 2017. Slope: 1/2:12 or greater in accordance with FBC 2017 Section 1507.4.2. Requires applied lap sealant for roof slopes less than 3:12. Design Uplift Pressure: 74.8 psf @ fastener spacing of 36" o.c. (Factor of Safety = 2) 92.3 psf @ fastener spacing of 24" o.c. 133.9 psf @ fastener spacing of 18" o.c. Fastener Pattern: Type: #9-16 or #10-14 hex head wood screws with sealed washer. Fastener shall be of sufficient length to penetrate through the deck a minimum of 3/8". At panel ends @ 3.5"-5.5"-3.5" o.c. across panel width At intermediate @ 9" o.c. across panel width with two fasteners at each sidelap. Sidelap Attachment: '/4"-14 x 7/8" long SDS with washer @ 12" o.c. Recommended for (Optional) roof slope less than 3:12. Test Standards: Roof assembly tested in accordance with TAS 125-03 `Standard Requirements for Metal Roofing Systems'. • ® FL 14645.9-R3 C2182-9 9.9.17 Page 3 of 3 Code Compliance: The product described herein has demonstrated compliance with FBC 2017 Section 1507.4. Product Limitations: Design wind loads shall be determined for each project in accordance with FBC 2017 Section 1609 or ASCE 7-10 using allowable stress design. The maximum fastener spacing listed herein shall not be exceeded. This evaluation report is not applicable in High Velocity Hurricane Zone. Fire classification is not within scope of this Evaluation Report. Refer to FBC 2017 Section 1505 and current approved roofing materials directory or ASTM E108/UL790 report from an accredited laboratory for fire ratings of this product. Supporting Documents: TAS 125 Test Reports Farabaugh Engineering and Testing Inc. Project No. T193-05, Reporting Date 9/12/05 Project No. T240-07, Reporting Date 7/12/07 PANEL FASTENER SPACING 1/4"-14 X 7/8" TEK SCREW SEE DETAIL 1 9 (NP) PER ALLOWABLE PRESSURE SPACED AT (OPTIONAL) 12" O.C. CLASSIC RIB / THIS SHEET CLASSIC RIB TABLE ON THIS SHEET MINIMUM ATTACHMENT: PLYWOOD 8d x 2.5" LONG RING SHANK NAIL 19/32" THICK (MIN.) UNDERLAYMENT SHALL BE INSTALLED AS PER MANUFACTURERS INSTALLATION n CLASSIC RIB MIN. 2X_ WOOD RAFTER/JOIST/ IaUIULLII)ItJ TRUSS AT MAX. 24" O.C. / SEE DETAIL 7 ` THIS SHEET SPACED ® 6" O.C. IN THE FIELD & AT PLYWOOD EDGES FASTENER PATTERN AT INTERMEDIATE LOCATIONS 36" 1/4"-14 X 7/8" TEK SCREW SPACED AT 12" O.C. (OPTIONAL) \ UNDERLAYMENT SHALL BE INSTALLED AS PER MANUFACTURERS INSTALLATION 11 PLYWOOD MINIMUM ATTACHMENT: 19/32" THICK (MIN.) QA ., o a" I Mir_ CIMr cWAMW Mnu x UUIULUNLJ OR 8 x 2" LONG WOOD SCREWS \—MIN. 2X_ WOOD RAFTER/JOIST/ TRUSS AT MAX. 24" O.C. SPACED ® 6" O.C. IN THE FIELD & AT PLYWOOD EDGES FASTENER PATTERN AT PANEL ENDS TYPICAL PANEL INSTALLATION X—SECTION 1 3/4" ---�— 1 3/4" 1/4"-14 X 7/8" TEK SCREW SPACED AT 12 O.C. (OPTIONAL) #9-16 OR #10-14 WOODSCREWS WITH SELF SEALING WASHER AT MAXIMUM SPACING OF 36" O.C. CLASSIC RIB MIN 26 GA. ALLOWABLE UPLIFT PRESSURE FASTENER SPACING (IN) PRESSURE (PSF) 36 74.8 24 92.3 18 133.9 GENERAL NOTES QE 1. ARCHITECTURAL ROOF PANEL HAS BEEN DESIGNED IN ACCORDANCE WITH THE FLORIDA BUILDING CODE (FBC). 2. ROOF PANELS SHALL BE MIN. 26 GA. (t - 0.0181'. EFFECTIVE COVERING WIDTH OF PANEL 36". PLYWOOD 3. THE ROOF PANELS SHALL BE INSTALLED OVER SHEATHING & STRUCTURE AS NT SPECIFIED ON THIS DRAWING. 19/32" THICK (MIN.) 4. REQUIRED DESIGN WIND LOADS SHALL BE DETERMINED FOR EACH PROJECT. THIS PANEL SYSTEM MAY NOT BE INSTALLED WHEN THE REQUIRED DESIGN WIND LOADS ARE GREATER THAN THE ALLOWABLE WIND LOADS SPECIFIED ON THIS DRAWING. ETAI L I 5. ALL FASTENERS MUST BE IN ACCORDANCE WITH THIS DRAWING & THE FLORIDA BUILDING CODE IF A DIFFERENCE OCCURS BETWEEN THE MINIMUM 1 REQUIREMENTS OF THIS DRAWING & THE CODE. THE CODE SHALL CONTROL 6. RAFTERS/JOISTS/TRUSSES MUST BE DESIGNED TO WITHSTAND WIND LOADS AS REQUIRED FOR EACH APPLICATION AND ARE THE RESPONSIBILITY OF OTHERS. 7 a I 0 U N C7 W 4 Z ~CJ 7� 7N0 F U1 t0 U _ M I zs7 OLo UJ,n 2 N1J �I y 5; N 0 N 00 10 Ld w x a - o m Ncc DL m z �oq U z2T V) N� u o a 1 OF 1