HomeMy WebLinkAboutEngineering RECEME
PAUL WELCH INC. DEC 2 3 2019
MECHANICAL ELECTRICAL CIVIL ENGINEERING ST., Lucie County., Permitting
1984 S.W. Bil-TMORE ST -#1 14
PORT ST. LUCIE, FL 34984
(772) 785-9888
E-MAIL: PWELCHINC@)AOL.COM
DECEMBER 20, 2019
RE: CASE RE-ROOF
2092 NETTLES BLVD.
JENSEN BEACH,FL
SCOPE OF WORK:
INSTALL NEW METAL ROOF(EXTREME METAL FABRICATORS, LLC. "5-V CRIMP" FL# 17022.6)
AT ABOVE REFERENCED ADDRESS OVER NEW UNDERLAYMENT,AND EXISTING PLY-WOOD
SHEATHING.
DESIGN CRITERIA: l ZID
FBC 2017
ASCE?-1 0 j;EVIEWED FOR
PROJECT DATA:
BUILDING HEIGHT = 12-0" CODE COMPUANCE
A= 3 E COUNTY
MEAN ROOF HEIGHT = <23' ST. LUCI
ROOF ANGLE = 5:12 BOCC 11�0
SHAPE = Hip f 'A
ADJUSTMENT FACTOR = 1.00
IMPORTANCE ACTOR = 1.00
WIND VELOCITY V ULT = 165 MPH
WIND VELOCITY V ASD = 128 MPH
EXPOSURE = D FILE COPY
ENCLOSURE CLASS = ENCLOSED BUILDING
INTERNAL PRESSURE COEFFICIENT=-0.1 8
APPLIED UPLIFT DESIGN PRESSURE PER ASCE(PSF):
ZONE I (FIELD) =-40.3
ZONE 2 (PERimETER/RiDGE) ^-68.0
ZONE 3 (CORNERS) -99.8
PAUL WELCH INC.
PAUL WELCH, P.E. FL. REG. NO.29945
DECEMBER 20, 2019
2092 NETrLEs BLVD
JENSEN BEACH,FL
1 bF3.
METAL ROOFING ATTACHMENT REQUIREMENTS:
METAL ROOFING TO BE ATTACHED WITH CORROSION RESISTANT HEX-HEAD WOOD SCREWS #10 X
1 1/2"MINIMUM WITH WEATHER SEALING WASHERS(MINIMUM 3/16"PENETRATION THROUGH DECK).
FASTENERS SHALL BE PLACED THROUGH THE PANEL RIBS AT 12" O.C. ACROSS PANEL WIDTH AND
SPACING ALONG RIBS AS FOLLOWS:
ZONE 1 (FIELD): FASTENERS SPACING = 6" O.C.
ZONE 2 (PERIMETER/RIDGE): FASTENER SPACING 6" O.C.
ZONE 3 (CORNERS): = FASTENER SPACING 6" O.C.
DESIGN UPLIFT PRESSURE FOR ATTACHMENTS AS PER ABOVE:
PRODUCT DESIGN PRESSURE: ZONES 1, 2, &3:-101 PSF
UNDERLAYMENT:
UNDERLAYMENT SHALL BE TRI-BUILT ROOFING PRODUCTS FL# 16048-R6. "TRI-BUILT S/A HT
TU". WHILE PRIMING IS OPTIONAL,TRI-BUILT RECOMMENDS PRIMING THE DECK IF THE FINAL ROOF
COVER IS NOT SLATED FOR INSTALLATION WITHIN 24 HOURS.
APPLY SHEET PARALLEL TO ROOF EDGE. ROLL OUT APPROXIMATELY 10 FT OF MEMBRANE AND PEEL
BACK THE FIRST 3 FT OF RELEASE FILM.
ADHERE THE EXPOSED PART TO THE SUBSTRATE AND UNROLLTHE REMAINING MEMBRANE AS FAR AS
POSSIBLE. ONCE THE ENTIRE LENGTH OF MEMBRANE IS IN PLACE, PEEL OFF THE RELEASE FILM
DIAGONALLY WHILE HOLDING THE MEMBRANE TIGHT. FIRMLY ROLL THE MEMBRANE INTO PLACE TO
ACHIEVE A BOND. HORIZONTAL SEAMS SHOULD BE MINIMUM 3-INCHES, CONFIGURED TO SHED
WATER. VERTICAL SEAMS SHOULD BE 6-INCHES AND STAGGERED NOT LESS THAN 2-FEET FROM
VERTICAL SEAMS IN THE COURSE BELOW. ALL OVER-GRANULE END-LAPS SHALL BE SEALED USING
EITHER HEAT-WELDING OR HOT AIR WELDING TECHNIQUES. FOR VALLEYS AND RIDGES: CUT
UNDERLAYMENT INTO 4 TO 6 FOOT LENGTHS. PEEL THE RELEASE PAPER AND CENTER SHEET OVER
THE VALLEY OR RIDGE IN EACH DIRECTION. DRAPE AND PRESS SHEET INTO PLACE,WORKING FROM
THE CENTER OF THE VALLEY OR RIDGE IN EACH DIRECTION. FOR VALLEYS, APPLY THE SHEET
STARTING AT THE LOWEST POINT AND WORK UPWARD.
DECK INSTALLATION:
RE-NAIL ALL PLYWOOD SHEATHING(15/32"THICK MINIMUM)WITH 8-D RING-SHANK NAILS AT 4"O.C.
PERIMETER AND 6" O.C. FIELD FOR ALL ZONES.
ALL WORK TO BE IN COMPLIANCE WITH PRODUCT APPROVAL (FL# 1 7022.6), FL# 16048-R6),
MANUFACTURER'S SPECIFICATIONS,AND THE FLORIDA BUILDING CODE 2017.
PAUL WELCH INC.
PAUL WELCH, P.E. FL. REG. NO.29945
DECEMBER 20, 2019-
2092 NETTLES BLVD
JENSEN BEACH, FL _
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NOTE: PROVME LAP SEALANT FOR ALL ROOF PANEL LAWS FOR ROOF
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PAUL WELCH INC.
PAUL WELCH, P.E. FL. REG. NO.29945
DECEMBER 20;2019
2092 NETTLES BLVD
JENSEN BEACH,FL - n
3.OF 3.