HomeMy WebLinkAboutAPPROVED crse-salem-church-of-god-letter-062321-signedCommercial-Residential
Structural Engineering, Inc.
10491 Six Mile Cypress Parkway, Ste 283
Fort Myers, Florida 33966
239.826.5989
June 23, 2021
Sailfish Roofing
Attention: Mr. Nick Derigo
9740 SE Gomez Ave
Hobe Sound, FL 33455
Re: Salem Church of God
CRSE No. 21107.00
Dear Nick:
Commercial-Residential Structural Engineering, Inc. (CRSE) is pleased to provide this report on the fastening
requirements for the following roofing item for the commercial building located at 4461 South 25th Street, Fort
Pierce, Fl 34981.
The following wind criteria and nominal components and cladding wind uplift pressures were used to calculate
the attachment of the following roofing items; 7th Edition (2020) Florida Building Code, ASCE 7-16, Wind
Speed: 170 mph (Vult) and 131.7 mph (Vasd), Risk Category III, Exposure B, Internal Pressure Coefficient:
+/- 0.18 (Enclosed) and a mean roof height of <= 30-feet.
Zone 1 and 2e are -47.3 psf, Zone 2n, 2r, and 3e are -69.0 psf, and Zone 3r is -82.0 psf. All zones 2 and 3
are defined as a=3-feet and measured from the edges and corners of the building; see the simplified wind
schematic below. The roof framing is designed for a dead load of 15 psf and a live load of 20 psf.
1. Sloped Roof Section - Extrememetal Fabricators 26-gauge 5V metal roof panel fasten to the 5/8-inch
CDX plywood roof deck using #9x1.5-inch HWH screws with self-sealing washers (Florida Product
Approval No 17022.01, -86 psf). The fasteners shall be corrosion resistant and penetrate beyond the plywood
roof sheathing a minimum of 3/16-inch. The attachment of the fastener to the plywood roof sheathing shall be
as follows:
All zones (3) fasteners spaced at 15-inches on center.
2. Flat Roof Section – The top side of the plywood roof sheathing shall be covered with Elastoflex SA
V and SA P (FL Product Approval No. 1654.1-R27, System No. W-209, -90.0 psf)
All zones The above system meets and exceeds all nominal components and cladding wind
uplift pressures for all zones.
Grant C. Girtman, P.E.
President
PE #57458, CA # 28397
Commercial-Residential Structural Engineering, Inc.
This report has been electronically signed and sealed by Grant C. Girtman, PE, #57458, CA # 28397, on June
23, 2021, using a Digital Signature. Printed copies of this document are not considered signed and sealed,
and the signature must be verified on any electronic copies.