HomeMy WebLinkAboutPRESSURE CALCULATIONSr
ENGINEERING & TESTING, INC.
Phone: (866) 781-6889 *Fax: (866) 784-8550
www.floridaengineeringandtesting.com
250 S.W.1Yb Avenue
Pompano Beach, FL 33069
DATE: 2/06/18 JOB ORDER #: 18-570
CLIENT: All Area Roofing
ADDRESS: 3921 S. US Highway 1 Fort Pierce, Florida 34982
PROJECT: Savannas Preserve GulfLok 7/8" Nailstrip Roof Panel
ADDRESS: 9501 Gumbo Limbo Lane Jensen Beach, FL 34957
2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS
Proiect Information:
Mean Height = Max. 15' Exposure: C Basic/Ultimate Wind Speed: Vait 170 mph
Length = 54' Category: U Nominal Wind Speed: V�d=Vait*40.6
Width = 14' Slope: 3/12 = 14' (asd = allowable strength design)
Parapet Wall: N/A Modular Home Kz = 0.85, Kzt = 1.0, Kd = 0.85
RECEIVED
Design Calculations:
Velocity Pressure: q = 0.00256*KZKtKdV2 FEB 2 2 2018
Velocity Pressure (it): q=0.00256(0.85)(1.0)(0.85)(170)2] = 53.45 psf ST. Lucie county, Permitting
Velocity Pressure (.d): q=0.00256(0.85)(1.0)(0.85)(170*40.6)2] = 32.07 psf
Width of Pressure Coefficient:
Effective Wind Area: <1 Oft
External Pressure Coefficient:
1) GCP1 = -0.9
2) GCP2 = -1.7
_3)� GCP3 = -2.6
0.1(14') = 1.4'
0.4(15') = 6.0' )use: 3'0"
Design Pressures Based on Vasd:
Internal Pressure Coefficient:
1) GCPi = 0.18
1)
Field
P1 =
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
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Quality'aA �6 JlZwurance
Page 2, 2/06/18, Job Order`tti&570
All Area Roofing
Savannas Preserve - Modular Home
GulfLok 7/8" Nailstrip Roof Panel
9501 Gumbo Limbo Lane; Jensen Beach, FL:
Attachment Requirements:
FLO A
Based on the requirements of Florida Product Approval # 11651.2 R3 with maximum
design pressures of-52.5psf and-116.0psf; the following are our recommended fastening
patterns to attach the maximum 16" coverage GulfLok Roof Panels to the minimum
15/32" thick, APA rated plywood deck (attached to supports per product approval) with
one (1) # 10 -12x1" Pancake Type A fastener with minimum 1/4" penetration through the
plywood as follows:
Area
Field
Perimeter & Corner
Maximum Total Uplift
-52.5psf
-116.Opsf
Design Pressure
Assembly
A
B
5-3/16" o.c. with'/4" to 5/16" diameter
Panel Slot Fastener
continuous bead of Titebond
Spacing
5-3116" o.c.
Weathermaster Metal Roof Sealant on
the Male Rib
Notes: Corners and perimeter (edge, hip, & ridge) area dimension shall not be less
than a = 3'0" (Zone 2: Perimeter (including along ridges) is a 3'0" wide
strip, Zone 3: Corners are 3'0" x 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 building code product control
notice of acceptance and manufacturer specifications and Florida Building
Code 2014 Edition.
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 by our field engineer (or authorized
representative) or a building department inspector to verify compliance with
-
Sincerely, .`0, ALale�Z
Mark A. McOiwip, P.E.
Florida Emitting *,gVting, h;c?'r
ZZ
Florida Reg. W02 of
Certificate oleA I i9twook Y
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