HomeMy WebLinkAboutLETTER-SCOPE OF WORKSCANNE-0
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PAUL WELCH INC.
ianicai Electrical Civil Engineering
1984 S.W. Biltinore St. Suite#1 14
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Port Saint.Lucie, FL 34984
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Phone (772) 785 - 9888
E�nail pwelchinc@aol.com
RECEIVED
APR 2 4 2018
ST. Lucie County, Permitting
April 23, 2018.
Re: Buchanan Re -Roof
10725 S. Ocean Drive Lot 70 F-ILE COPEV,
Jensen Beach, FL 34957
SCOPE 'OF WORK: I
Remove existing roofing and insfitll new 5-V Crimp Metal Roof (Gulf Coast Supply &
Manufiictuiing FL # 11 6� 1. 13) ai above referenced residence address over new underlayment
and existing plywood sheathing. I
DESIGN -CRITERIA:
FBC 2017
ASCE7-10
BUILDING HIEGHT 10'
A= 3'
MEAN ROOF HIEGHT
ROOF ANGLE = 3:12
SHAPE = PITCHED GABI
HvIPROTANCE FACTOR =j 1.00 ,
WIND VELOCITY V ult 165 MPH
WIND VELOCITY V asd 24 MPH
EXP08URE = D
ENCLOSURE CLASS = ENCLOSED BUILDING
INTERNAL PRESSURE COEFFICIENT = -0. 18
APPLIED UPLIFT DESIGN PRESSURES ON S'.
ZONE I (Field) = -44.7 1
ZONE 2 (Perimeter/ Ridge) = -75.5
ZONE 3 (Comers) = -110.8 -
Paul Welch Inc.
Paul Welch P.E. Reg. No. 29945
April 23, 2018
10725 S. Ocean Drive Lot 470 Jensen Beach, FL 34957 1 of4'
Metal roofing to be attached with #9 -
plywood sheathing) Woodgrip screws
ZONE 1 (Field):
Fasteners through ribs (Type I per I
ZONE 2 (Perimeter/ Ridge):
Fasteners through ribs (Type 1 per y
ZONE 3 (Comers):
Fasteners adjacent to ribs both sides
x 1 1/2" long (minimum 1/4" penetration through
h weather sealing washers spacing as follows:
approval) at 16" O.C.
approval) at 16" O.C.
2 per product approval) at 16" O.C.
Zones I & 2 Design uplift Pressure: -94.25 psf
Zone 3'Design uplift Pressure: - 13 1.0 psf
Zones 1 &2: 94.25 >.75.5 > 44.7 Ther�fbre O.K.
Zone 3: 131.0 > 110.8 Therefore O.K.
NOTE: CONTENUOUS APPROVED LAP SEALANT MUST BE USED AT ALL PANEL
SIDELAPS FOR SLOPES LESS THAN �:12. .
UNDERLAYMENT: I
Underlayment shall be Tri-Built Roofing Proi
� I
While priming is optional, TRI-BUILT recon
not slated for installation Within 24 hours.
Apply sheet parallel to the roof edge. Roll ou
the first 3 ft of release film., �I
Adhere the exposed part to the substrate and
Once the entire length of membrane is in pla4
holding the membrane tight. Firmly roll the n'
seams should be minimum * 3-inchds, configur
and staggered not less than 2-ft from vertical
laps shall be sealed.using either heat-weldipg
Ridges: Cut underlayment into 4 to 6 foot len
valley or ridge. Drape and press sheet into ph
in each direction. For valleys, apply the sheet
I'.
10725 S. Ocean Drive Lot 470 Jensen Beach, FL 34957
FL# 16048.1 "Tri-Built S/A HT TU".
Is pfiming the deck -if the final roof cover is
approximately 10 ft of membrane and peel back
-oll the remaining membrane as far as possible.
peel -off the release film diagonally while
nbrane into place to achieve a bond. Horizontal
to shed water. Vertical seams should be 6inches
ims in the course below. All over -granule end -
hot air welding techniques., For Valleys and
is. Peel the rel ' ease paper and center sheet over
"Working from the center of the valley or ridge
arting at the lowest point and work upward.
Paul Welch Inc.
Paul. Welch P.E. Reg. No. 29945
April 23, 2018
2 of 4
2
DECK,
INSMALLATION:
Re -nail all'plywood sheathing (15/32" thick minimum) with 8D ring-shank.nails at 4" O.C.
I
perimeter and 6" O.C. field for all zones, ! I
All work to be in compliance with product approval (FL # 1.1651.13), (FL# 16048. 1),
I
manufacturer's specifications, and the Florida Building Code 2017.
10725 S. Ocean Drive Lot 470 Jensen Beach, FL 34957
Paul WelchInc.
Paul Welch P.E. Reg. No. 29945
April 23, 2018
3 of 4
I I Tm
Oo 0
A0
ROOFZONEPLAN
I
A=3'
Q(D,(D3= zol DESIGNA 7YON (77PICAL)
NOTE: CONTINUOUS APPROVED LAP SEALANT MUST BE USED AT ALL PANEL
SEDELAPS FOR SLOPES LESS TRANI 1 3:12.
Paul Welch- Inc.
Paul Welch P.E. Reg. No. 29945
April 23, 2018
10725 Sr0cean Drive Lot 470 Jensen Beach, FL 34457 4 of 4