HomeMy WebLinkAboutENGINEERING AND TESTING INC PAPERWORKENGINEERING & TESTING, INC.
Phone: (866) 781-6889 *Fax: (866) 784-8550
www.floiidaenginecringandtesting.com
250 S.W.13`h Avenue
Pompano Beach, FL 33069
DATE: 2/12/19 JOB ORDER #: 19-782
CLIENT: All Area Roofing SCANNED
BY
ADDRESS: 3921 S. US Highway 1 Fort Pierce, FL 34982 St. Lucie County
PROJECT: Bethune Residence Flat Wood Non -Insulated Roof Deck
ADDRESS: 1806 W Boothe Drive Fort Pierce, FL 34982
2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS
Proiect Information:
Height = 9' Exposure: C Basic/Ultimate Wind Speed: V u=160 mph
Length = 34' Category: II Nominal Wind Speed: V,d=V is*40.6
Width = 16' Slope: < 7* (asd = allowable strength design)
Parapet Wall: N/A Residential KZ = 0.85, Kzt = 1.0, Kd = 0.85
Design Calculations:
Velocity Pressure: q = 0.00256*KXK XdW
Velocity Pressure (.it): q=0.00256(0.85)(1.0)(0.85)(160)2 = 47.35 psf
Velocity Pressure (.d): q=0.00256(0.85)(1.0)(0.85)(160*40.6)2 = 28.41 psf
Width of Pressure Coefficient: 0.1(16') = 1.6'
0.4(9') = 3.6' ) use: 3'0"
Effective Wind Area: <10ft2
For parapet height three feet (3') or larger, zone three (3) shall be treated as zone two (2).
External Pressure Coefficient:
1)
GCP1 =
-1.0
2)
GCP2 =
-1.8
3)
GCP3 =
-2.8
Internal Pressure Coefficient:
1)
GCPi = 0.18
Quality $ssnrauce
Page 2, 2/12/19, Job Ord_- .:'-9-782
All Area Roofing - Bethune Residence
Flat Wood Non Insulated Roof Deck
1806 W Boothe Drive; Fort Pierce, FL:
Design Pressures Based on Vasa:
1) Field
2) Perimeter
3) Corners
Attachment Requirements:
PI = 28.41 * [(-1.0) — (0.18)] _ -33.5 psf
P2 = 28.41 * [(-1.8) — (0.18)] _ -56.3 psf
P3 = 28.41*[(-2.8) — (0.18)] _ -84.7 psf
The system is acceptable as approved based on the requirements of Florida Product
Approval # FL1654-R23, Appendix 1, page 26 of 65, System No. W-170 with a
maximum design pressure of -90 psf.
Base Ply:
Self adhere one or more plies of Elastoflex SA V Base Ply sheet to the min. 15/32"
plywood deck.
Cap Ply:
Torch apply the Polyflex G Cap Ply sheet to the base ply sheet.
Notes: Corners and perimeter area dimension shall not be less than a = TO"
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 building code product
control notice of acceptance and manufacturer specifications and Florida
Building Code 2017 Edition.
Wind load calculations based on ASCE-7, FBC 2017, and information
provided by client. Client is responsible for verifying existing/proposed
conditions/decks as it pertains to the above provided product approval.
All work shall be inspected by our field engineer (or authorized
representative) or a building department inspector to verify compliance
with specifications.
Sincerely,
48202 10
Mark A. IVVo, P
Florida Eng& ing
Florida Reg.�l�`�8:
Certificate of Wei