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PAUL WELCH INC.
Mechanical Electrical Civil Engineering
1984 S.W. Biltmore St. Suite#114
Port Saint Lucie,FL 34984
Phone(772)785 - 9888
E-mail pwelchinc@aol.com
September 26,2017
Re: Randolph Re-Roof
698 Nettles Blvd.
Jensen Beach, FL 34957
SCOPE OF WORK:
Install new Metal Roof(Extreme Metal Fabricators,LLC "5-V Crimp"FL#17022.1) at above
referenced address over new underlayment, and existing plywood sheathing.
DESIGN CRITERIA:
FBC 2014
ASCE7-10
PROJECT DATA:
BUILDING HIEGHT= 10'-0"
A=3'
MEAN ROOF HIEGHT=<25'
ROOF ANGLE=4:12
SHAPE=PITCHED GABLE
ADJUSTMENT FACTOR= 1.00
IMPROTANCE FACTOR= 1.00
WIND VELOCITY V ult= 165MPH
WIND VELOCITY V asd= 128 MPH
EXPOSURE=D
ENCLOSURE CLASS=ENCLOSED BUILDING
INTERNAL PRESSURE COEFFICIENT=-0.18
APPLIED UPLIFT DESIGN PRESSURES PER ASCE (PSF):
ZONE 1 (Field)=-40.3
ZONE 2(Perimeter/Ridge)_-68.0 _
ZONE 3 (Corners) _-99.8 ,Paid-Weeh Inc.
Paul-Welch P.F. Reg.No.29945
September_26,2017
698 Nettles Blvd.Jensen Beach,FL 41f
I
METAL ROOFING ATTACHMENT REOUIREMENTS:
Metal roofing to be attached with corrosion resistant Hex-Head wood screws#10 x 1
minimum with weather sealing washers(minimum.3/16"penetration through deck). Fasteners
shall be placed through the panel ribs at 12"on center across panel width and spacing along the
ribs as follows:
ZONE 1 (Field): FASTENER SPACING= 16" O.C.
ZONE 2 e :FASTENER SPACING= 16 O.C.
(Perimeter/Ridge):
ZONE 3 (Comers): FASTENER SPACING= 8" O.C.
NOTE: PROVIDE LAP SEALANT FOR ALL ROOF PANEL LAPS FOR ROOF
SLOPES UNDER 3 VERT. :12 HORZ.
Design uplift Pressure for attachment as per above:
Product Design Pressure: Zones 1 &2: -93.5PSF/Zone 3: -101PSF
Therefore O.K.
UNDERLAYMENT:
Underlayment shall be in accordance with manufacturer's guidelines, FBC 1507.4.5.1,and FBC
15074.5.2.Underlayment shall be Approved 30#Roofing Felt.
DECK INSTALLATION:
Re-nail all plywood sheathing(15/32"thick minimum)with 8D 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# 17022.1),manufacturer's
specifications, and the Florida Building Code 2014.
Paul-Welch�lnc:.
Paul Welch-P_-E;'Reg.No.29945
September-26,2017-
698 Nettles Blvd.Jensen Beach,FL 2 of 3
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ROOF ZONE PLAN
A=3'
010,02 ,03 ='ZONE DESIGNATION(TYPICAL)
NOTE: PROVIDE LAP SEALANT FOR ALL ROOF PANEL LAPS FOR ROOF .
SLOPES UNDER 3 VERT. :12 HORZ. r_ -
P-�ul'Welch-Inc.
Paul Welch P.-E. Reg._IvTo.--29945
Sep�emb 26,2017 = _
698 Nettles Blvd.Jensen Beach,FL 3 of 3-