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FL06 A ENGINEERING & TESTING, INC.
Phone: (866)781-6889 •Fax: (866) 784-8550
mrww.flor daengineeringandtesting.com
250 S.W.13'h Avenue
!' Pompano Beach,FL 33069
DATE: 4/07/17 JOB ORDER#: 17-1243
CLIENT: All Area Roofing
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ADDRESS: 3921 S.US Highway 1 Fort Pierce,Florida 34982
PROJECT: Palmatier Residence Flat Wood,Non-Insul Ited Roof Deck
ADDRESS: 990 Emerald Avenue Fort Pierce,Florida
FBC-2014/ASCE 7-10 DESIGN PRESSURE CALCULATIONS
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Proiect Information:
Height= 8' Exposure: C Basic/Ultimate Wind..Speed: V,dt=170 mph
Length= 19' Category: Il Nominal!Wind Speed: Vna=V„lt*0.6
Width= 13' Slope: <7° (asd=all strength design)
Parapet Wall: N/A Residential KZ=0.85, Kzt= 1.0, 0.85
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Design Calculations:
Velocity Pressure: q=0.00256*KZK�tKdV
VelocityPressure ntt : q=0.00256 0.85 1.0 0.85 170 2 53.45 sf
( ) ( )( )( )( ) ] = p
Velocity Pressure (asd): q=0.00256(0.85)(1.0)(0.85)(170*,b.6)2] =32.07 psf
Width of Pressure Coefficient: 0.1(13') _ . 1.3'
0.4(8') = 3.2' } use: ;3'0"
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Effective Wind Area: <1 Of 2 f
For parapet height three feet(T) or larger, zone three (3) shall be treated as zone two (2).
External Pressure Coefficient: Internal Pressure Coefficient:
1) GCP1 = -1.0 1) GCPi = j 0.18
2) GCP2 = -1.8
3) GCP3 = -2.8
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Quality 'I A .gsaurartce 4�
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• Page 2,4/07/17,Job A#17-1243
All Area Roofing-Palmatier Residence r; FLD A
Flat Wood Non Insulated Roof Deck i 990 Emerald Avenue;Fort Pierce,Florida:
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Design Pressures Based on Vasd:
1) Field PI = 32.07*[(-1.0)—(0.18)] _-37.8 psf
2) Perimeter P2 = 32.07*[(-1.8)—(0.18)] _-63.5 psf
3) Corners P3 = 32.07*[(-2.8)—(0.18)] _-95.6 ps
Attachment Requirements Per RAS-117:
Based on the requirements of N.O.A. #14-0529.02, pg 23 of 42, System Type E(3), with a
maximum design pressure of -52.5psf; the following are our recommended fastening
patterns to attach the proposed base sheet to the wood (non-,,insulated) 19/32" or greater
plywood or wood plank deck utilizing approved 11 ga. annular ring shank nails and
approved tin caps:
Field: 8" o.c. @ 4" laps and 3 staggered rows 8" o.c.
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Perimeter: 6" o.c. @ 4" laps and 3 staggered rows 6" o.c.
Corners: 6" o.c. @ 4" laps and 5 staggered rows 6" o.c. .l,
Notes: Corners and perimeter area dimension shall not be less than a=3'0"
Contractor to verify that the fastening patterns meet manufacturer's
requirements for issuance of a warranty(as applicable).
All work shall .be in compliance with the local buildIg code product
control notice of acceptance and manufacturer specifications and Florida
Building Code 2014 Edition.
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Wind load calculations based on ASCE 74% FBC 2014'and information
provided by client. Client is responsible for verifying ekisting/proposed
conditions/decks as it pertains to the above provided prod Jct approval.
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All work shall be inspected by our field engineer I (or authorized
representative) or a building department inspector to verify compliance
with specifications. ®
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Sincerely, �� ��� 'q'y fir°
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Mark A. Mesiaf$ O� P-•awe
Florida Engine
Florida},eg.Non4 s/ONP��-
Certificate of Authonza/t� �ib���23
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