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
June 7,20 6
Re: Jones Re-Roof
10725 S. Ocean Drive Unit 261
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
ASCE?-10
PROJECT DATA:
BUILDING HIEGHT=9'-0"
A=3'
MEAN ROOF HIEGHT=<20'
ROOF ANGLE=4:12
SHAPE=PITCHED HIP
IMPROTANCE 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 (nsf):
ZONE 1 (Field)=-44.7
ZONE 2 (Perimeter/Ridge)_-75.5
ZO 3 (Corners)_-110.8
;,>i .rr - _ ��Ful Welch Inc.
"Paul,'elch P E Reg.No. 29945
'-7,2016
10725 S.Ocean Drive Unit 261 Jensen Beach,FL 34957,: ', ��!�.%11.1,�,<�. �' 1 of 3
ATTACHMENT REOUIREMENTS:
Metal roofing to be attached with#9- 15 x 1 1/2"long(minimum 1/a"penetration through
plywood sheathing)Woodgrip screws with weather sealing washers spacing as follows:
ALL FASTENERS IN THE FLAT OF THE PANEL
ZONE 1 (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 :
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 D 1970 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_'L014.
- Paul Welch Inc.
Paul Welch P.E. Reg.No. 29945
=June 7,2016
10725 S.Ocean Drive Unit 261 Jensen Beach,FL 34957 2 of 3
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A A
ROOF ZONE PLAN
A=3'
10,Q,Q=ZONE DESIGNATION'(TYPICAL)
NOTE: CONTINUOUS APPROVED LAP SEALANT_ TST DE USED AT ALL PANEL
SIDELAPS FOR SLOPES LESS THAN 3:12:
Paul Welch Inc.
_ aul Welch P.E. Reg.No. 29945
.- June 7,2016
10725 S.Ocean Drive Unit 261 Jensen Beach,FL 34957 3 of 3