HomeMy WebLinkAboutDESIGN PRESSURE CALCULATIONSRECEIVED ENIGINEERING & TESTING, INC.
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ST, w@19 994 , Permitting 250 S.W.13`h Avenue
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DATE: 2/13/18 ���Y JOB ORDER #: 18-680
CLIENT: All Area Roofing
ADDRESS: 3921 S. US Highway 1 Fort Pierce, Florida 34982
PROJECT: Jacobs Residence Sunlast Metal 5V Crimp Roof Panels
ADDRESS: 5335 Montego Circle Fort Pierce, Florida
2017 FBC/ASCE-7 DESIGN PRESSURE CALCULATIONS
Proiect Information:
Mean Height < 15' Exposure: D Basic/Ultimate Wind Speed: V,,I =170 mph
Length = 60' Category: H , Nominal Wind Speed: Va,d V,,,*q0.6
Width = 25' Slope: 3/12 =14' (asd = allowable strength design)
Parapet Wall: N/A Residential KZ =1.03, Kzt =1.0, Kd = 0.85
Design Calculations:
Velocity Pressure: q = 0.00256*KZK,tKdV2
Velocity Pressure (,,It): q=0.00256(1.03)(1.0)(0.85)(170)2] = 64.77 psf
Velocity Pressure (ad): q=0.00256(1.03)(1.0)(0.85)(170*�0.6)2] = 38.86 psf
Width of Pressure Coefficient: 0.1(25') = 2.5'
0.4(15') = 6.0' } use: 3FILE COPY
Effective Wind Area: <1 Of 2
External Pressure Coefficient:
1)
GCP1
= -0.9
2)
GCP2
= -1.7
3)
GCP3
= -2.6
Design Pressures Based on Vasd:
Internal Pressure Coefficient:
1) GCP; = 0.18
1) Field
P1 = 38.86*[(-0.9)
— (0.18)]
= -42.0 psf
2) Perimeter
P2 = 38.86*[(-1.7)
— (0.18)]
= -73.1 psf
3) Corners
P3 = 38.86*[(-2.6)
— (0.18)]
= -108.0 psf
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=v 1 Page 2, 2/13/18, Job Order
All Area Roofing
Jacobs Residence
Sunlast Metal 5V Crimp Roof Panels
5335 Montego Circle; Fort Pierce, FL:
Attachment Requirements:
FLO A
Based on the requirements of Florida Product Approval # 21423.7 with maximum design
pressures of-78.5psf for the field and-189.25psf for the perimeter and corner zones; the
following are our recommended fastening row spacing (located across panel per Install
Details on page 4 of 4) to attach the Sunl'ast Metal 26GA 5V Crimp Roof Panels (24"
width) to the 15/32" APA plywood deck (attached to structural supports per product
approval) with Wood-Zac XG fasteners with Neoprene Washers or equivalent # 10 Hex
Head to penetrate 3/16" minimum through plywood in the following spacing:
Area
Field
Perimeter & Corner
Maximum Design Pressure
-78.5psf
-189.25psf
Fastener Row Spacing
16" O.C.
8" O.C.
Fastener Size
910
#10
Notes: Corners and perimeter (edge, ' hip, & ridge) area dimension shall not be less
than a = TO" (Zone 2: Perimeter (including along ridges) is a 3'0" wide
strip, Zone 3: Corners are 3'0" x 310")
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, 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
specifications.
Sincerely,
Mark A. Mesiano, No. 48202 , 0 r
Florida Engineerir tTesting, Inc
Florida Reg. No. 43�;� STATE
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