HomeMy WebLinkAboutEngineering PAUL WELCH INC.
Mechanical Electrical Civil Engineering
1984 S.W. Biltmore St. Suite#114
Port Saint Lucie,FL 34984
Phone(772)785 -9888
Email pwelchinc@aol.com
February 11,2016
Re: Jones Re-Roof
10725 S. Ocean Drive Unit 136
Jensen Beach, FL 34957
SCOPE OF WORK:
Remove existing roofing and install new 5-V Crimp Metal Roof(Gulf Coast Supply&
Manufacturing FL# 11651.13)at above referenced residence address over new underlayment
and existing plywood sheathing.
DESIGN CRITERIA:
FBC 2014
ASCE7-10
PROJECT DATA:
BUILDING HIEGHT= 9'-0"
A=3'
MEAN ROOF HIEGHT=<15'
ROOF ANGLE=2:12
SHAPE=PITCHED GABLE
1MPROTANCE FACTOR= 1.00
WIND VELOCITY V ult= 165 MPH
WIND VELOCITY V asd= 124 MPH
EXPOSURE=D
ENCLOSURE CLASS=ENCLOSED BUILDING
INTERNAL PRESSURE COEFFICIENT=-0.18
APPLIED UPLIFT DESIGN PRESSURES ON SLOPED ROOF (usf):
ZONE 1 (Field)=-44.7
ZONE 2(Perimeter/Ridge)_-75.5
ZONE 3 (Corners)_=-110.8
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ATTACHMENT REOUIREMENTS:
Metal roofing to be attached with#9- 15 x 1 Y2"long(minimum V4"penetration through
plywood sheathing)Woodgrip screws with weather sealing washers spacing as follows:
ALL FASTENERS IN THE FLAT OF THE PANEL
ZONE I (Field):
Fasteners adjacent to ribs one side(Type 1 per product approval) at 16" O.C.
ZONE 2(Perimeter/Ridge):
Fasteners adjacent to ribs one side(Type 1 per product approval) at 16" O.C.
ZONE 3(Corners):
Fasteners adjacent to ribs both side(Type 2 per product approval) at 16" O.C.
Zones 1 &2 Design uplift Pressure: -94.25 psf
Zone 3 Design uplift Pressure: - 131.0 psf
Zones 1 &2: 94.25 >75.5>44.7 ' Therefore O.K.
Zone 3: 131.0> 110.8 Therefore O.K.
NOTE: CONTINUOUS APPROVED LAP SEALANT MUST BE USED AT ALL PANEL
SIDELAPS FOR SLOPES LESS THAN 3:12.
UNDERLAYMENT (oution#1):
Underlayment shall be Polyglass USA, Inc. FL#5259.1 "Polystick TU Plus". Polystick TU Plus
shall be installed in compliance with the codified requirements for ASTM D1970 underlayment
in FBC Section 1507. All seal-lap seams must be firmly rolled with a minimum 281b.hand roller
to ensure full contact and adhesion.
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# 11651.13), (FL#5259.1),
manufacturer's specifications, and the Florida Building Code 2014.
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10725 S.Ocean Drive Unit 136 Jensen Beach,FL 34957 2 of
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ROOF ZONE PLAN
A=3'
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NOTE: CONTINUOUS APPROVED LAP SEALANTMUST BE USED AT ALL PANEL
SIDELAPS FOR SLOPES LESS THAN 3:-12:4;`' ;,;;•,`r`� '',.'
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FLORIDA PRODUCT APPROVAL NO. 11651.13
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TYPE 1 FASTENER PATTERN
(1) #9-15 x 1 -1 /2" HWH w/Sealing Washer
12" -12" 1►
At Panel Lap
TYPE 2 FASTENER PATTERN
(1) #9-15 x 1 -1/2" HWH w/Sealing Washer
Vill2119.511 -- l' 9.511 2" 1
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