HomeMy WebLinkAboutSCOPE OF WORKi
I
PAUL WELCH INC.
MANNED Mechanical Electrical Civil Engineering
Fay
1984 S.W. Biltmore St. Suite#114
Gg Ludle Port Saint Lucie, FL 34984
Phone (772) 785 - 9888
Email pwelchinc@aol.com
May 1, 2018
Re: Owen Re -Roof
10725 S. Ocean Drive Lot 515
Jensen Beach, FL 34957
80S OI S7
FILE COP',,'
SCOPE OF WORK:
Remove existing roofing and install new 5-V Metal Roof (Metal Sales Manufacturing
Corporation FL # 14645.3) at above referenced residence address over new underlayment.and
existing plywood sheathing. 1.
DESIGN CRITERIA:
FBC 2017
ASCE7-10
PROJECT DATA:
BUILDING HIEGHT =10'
A= 3'
MEAN ROOF HIEGHT = <20'
ROOF ANGLE = 3:12
SHAPE = PITCHED HIP
HvIPROTANCE 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) = -11.0.8
Paul -Welch Inc.
Paul Welch P.E. Reg. No. 29945
May 1, 2018
10725 S. Ocean Drive Lot 515 Jensen Beach, FL 34957 1 of 4
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Metal roofing to be attached with #9 -16 x 1 %Z" long (minimum 3/8" penetration through
plywood sheathing) hex -head wood screws with weather sealing washers spacing as follows:
ZONE 1(Field):
Fasteners through ribs at 16" O.C.
ZONE 2 (Perimeter/ Ridge):
Fasteners through ribs at 8" O.C.
ZONE 3 (Corners):
Fasteners through ribs at 8" O.C. I
Zones 1 & 2 Design uplift Pressure: -94.25 psf
Zone 3 Design uplift Pressure: - 131.0 psf
Zones 1: 74.8 > 44.7 Therefore O.K. .i
ZoneS; 2& 3: 196.75 > 75.5 > 110.8 i 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 Tri-Built Roofing Products FL# 16048.1 "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 the 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 unroll the remaining membrane -asfar as. possible.
Once the entire length of membrane is in place, peel -off the release fibn 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 6inches
and staggered not less than 2-ft 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
valley or ridge. 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.
Paul Welch Inc.
Paul Welch P.E. Reg. No. 29945
May 1, 2018
10725 S. Ocean Drive Lot 515 Jensen Beach, FL 34957 2 of 4
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DECK INSTALLATION:
Re -nail all plywood sheathing (19/32" thick minimum) with 8D ring -shank nails at 4" O.C.
perimeter and 6" O.G. field for all zones.
All work to be in compliance with product approval (FL # 14645:3),, (FL# 16048.1),
manufacturer's specifications, and the Florida Building Code 2017.
Paul Welch Inc.
Paul Welch P.E. Reg. No. 29945
May 1, 2018
10725 S. Ocean Drive Lot 515 Jensen Beach, FL 34957 3 of 4
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t`W E 2
ROOF ZONE.PLAN �.
A=3'
(1, Q2 , Q3 = ZONE DESIGNATION (TYPICAL)
NOTE: CONTINUOUS APPROVED LAP SEALANT MUST BE USED AT ALL PANEL
SIDELAPS FOR SLOPES LESS THAN 3:12.
Paul Welch Inc.
Paul Welch P.E. Reg. No. 29945
May 1; 2018
10725 S. Ocean Drive Lot 515 Jensen Beach, FL 34957 4 of 4