HomeMy WebLinkAboutEngineering RECEITH JUL 14 20116
FLO A ENGINEERING & TESTING, INC.
Phone: (866)781-6889•Fax: (866) 784-8550
mw .floridaengineeringandtesting.com
250 S.W.13`h Avenue
FILE COPY Pompano Beach,FL 33069
DATE: 7/07/16 JOB ORDER#: 16-2102
CLIENT: All Area Roofing
ADDRESS: 3921 S.US Highway 1 Fort Pierce,Florida 34982
PROJECT: Clark Residence Flat Wood Non Insulated Roof Deck
ADDRESS: 3115 Sunrise Blvd. Fort Pierce,Florida
FBC 2014/ASCE 7-10 DESIGN PRESSURE CALCULATIONS
Proiect Information:
Height= Max. 15' Exposure: C Basic/Ultimate Wind Speed: Vi1t=170 mph
Length= 20' Category: H Nominal Wind Speed: Vasd=V,,1t*N0•6
Width= 13' 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*KZK..,
Velocity Pressure (ult): q=0.00256(0.85)(1.0)(0.85)(170)2] =53.45-psf
Velocity Pressure (and): q=0.00256(0.85)(1.0)(0.85)(170*v6.6)2] =32.07 psf
Width of Pressure Coefficient: 0..1(13') = 1.3'
0.4(15') = 6.0' } 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: Internal Pressure Coefficient:
1) GCP1 = -1.0 1) GCP; = 0.18
2) GCP2 = -1.8
3) GCP3 = -2.8
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Page 2,7/07/16,Job Order#16-2102
All Area Roofing-Clark Residence
Flat Wood Non Insulated Roof Deck
3115 Sunrise Blvd.;Fort Pierce,Florida:
Design Pressures Based on Vasd:
1) Field P1 = 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 psf
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.
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.
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 2014 Edition.
Wind load calculations based on ASCE 7-10, FBC 2014 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.
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Cert fic.ite�df i'ih 'd zation_No. 6923