HomeMy WebLinkAboutDESIGN PRESSURE CALCULATIONS.0 A . �.���
J ENGINEERING & TESTING INC.
Phone: (866) 781-6889 •Fax: (866) 784-8.550
www.fioiidaengineeringandtesting.com
APR 0� 6 2018 250 S.W.13"' Avenue
Pompano Beach, FL 33069
ST. Lucie County, Permitting
DATE: 4/03/18 JOB ORDER #: 18-1393
CLIENT: All Area Roofing
ADDRESS: 3921 S. US Highway 1 I Fort Pierce, Florida 34982
PROJECT: Black Residence I Gulf Coast 5V Crimp Roof Panels
ADDRESS: 5510 San DieLyo Avenue Fort Pierce, Florida 34946
2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS
Proiect Information:
Mean Height = Max. 15' Exposure: G Basic/Ultimate Wind Speed: V,,tt=170 mph
Length = 72' Category: II Nominal Wind Speed: V.d=Vuit*40.6
Width = 43' Slope: 4/12 =18' (asd = allowable strength design)
Parapet Wall: N/A Residence KZ = 0.85, Kzt = 1.0, Kd = 0.85
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Design Calculations:
I F-ILE COPV
Velocity Pressure: q = 0.00256*KZKAdV2
Velocity Pressure („ lt): q=0.00256(0.85+�(1.0)(0.85)(170)Z] = 53.45 psf
Velocity Pressure (.d): q=0.00256(0.85)(1.0)(0.85)(170*�0.6)2] = 32.07 psf
Width of Pressure Coefficient: 0.1(43')
0.4(15')
Effective Wind Area: <10f 2 I
External Pressure Coefficient:
1) GCP1 = -0.9
2 GCP2 — 1 7
= 4.3'
= 6.0' } use: 4'6"
Internal Pressure Coefficient:
1) GCP; = 0.18
3) GCP3 = -2.6
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Design Pressures Based on Vasd:
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1) Field PI = 32.07*[(-0.9) — (0.18)] = -34.6 psf
2) Perimeter P2 = 32.07*[(-1.7) — (0.18)] = -60.3 psf
3) Corners P3 = 32.07* [(-2.6) — (0.18)] = -89.2 psf
a
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Page 2, 4/03/18, Job Order
All Area Roofing
Black Residence- Modular Home
Gulf Coast 5V Crimp Roof Panels
5510 San Diego Avenue; Fort Pierce, FL:
Attachment Requirements:
FILOIUnA
Based on the requirements of Florida Product Approval # 11651.12 R3 with maximum
design pressures of-108.5psf; the following are our recommended fastening patterns to
attach the 26 ga. steel Gulf Coast 5V Crimp roof panels (24" coverage) to the minimum
15/32" plywood decking with # 9-15 x 1.5" astener with sealing washing through panel
ribs with 1/4" minimum penetration through e plywood as follows:
Area
Field, Perimeter & Corner
Maximum Total Uplift Design Pressure
-108.5 sf
Fastener Pattern
Panel Rib
Fastener Row Spacing
12" o.c.
Fastener Spacing (Along Rows)
Type 1-12" o.c
Notes: Corners and perimeter (edge, hip, & ridge) area dimension shall not be less
than a = 4'6" (Zone 2: Perimeter (including along ridges) is a 4'6" wide
strip, Zone 3: Corners are 4'6" x 4'6")
Contractor to verify that the fastening patterns meet manufacturer's
requirements for issuance of a warranty (as applicable).
All work shall be in compliance
notice of acceptance and manu
Code 2017 Edition.
the local building code product control
er specifications and Florida Building
Wind load calculations based on ASCE-7, 2017 FBC, and information
provided by client. Client is responsible for verifying existing conditions as it
pertains to the above provided product approval.
All work shall be inspected
representative) or a building dep
specifications.
by our field engineer (or authorized
tment inspector to verify compliance with
Sincerely,
Mark A. Mesiano, IH
Florida Engineering
Florida Reg. No. 4821,
Certificate of Authori