HomeMy WebLinkAboutAPPROVED ENGINEER - Jackson doc
M.A. CORSON & ASSOCIATES, Inc.
ARCHITECTURE * STRUCTURAL DESIGN
412 Colorado Ave., Stuart, Fl. 34994
(772) 223-8227 * Lic. #AR91665
To: St. Lucie County - Building & Code Regulation Division Date: October 08, 2021
Re: Deborah C. Jackson
9940 S. Ocean Drive Unit 701 (Middle)
Jensen Beach, Fl. , 34957
It is acceptable to replace the single hung and double hung windos for the address listed
above as follows:
1) S.H. - The PGT systems Series "SH 5500A" L.M.I. the pvc single hung window has a Florida
number NOA-#20-0401.03. It has a +65 /-70 design pressure and has a L.M.I. & S.M.I. "D"
approval and HVHZ.
2) D.H.- The PGT Window Systems "SH 5560" Impact PVC double hung window L.M.I. has a
Miami Dade NOA #20-0401.06 . It has a +70 /-110 design pressure and has a small & large
missile "D" approval and HVHZ.
The worst case scenario building design pressures of address listed above in Zone 4 is +58.7 / -
63.7 and Zone 5 is +58.7 / -78.5. The nominal wind speed is 132 mph and the ultimate wind
speed is 170 mph. The building has a type II classification and exposure category "D" for the 7th
Edition of the FBC (2020).
SCOPE OF WORK: New the single hung and double hung window.
DESIGN PARAMETERS AND ASSUMPTIONS USED:
1. DESIGN CODE: Florida Building Code Seventh Edition (2020)
2. Structure Designed: Enclosed
3. Risk Category: II Exposure Category: D
4. Design Wind Velocity 170 mph Nominal Wind Speed 132 mph End Zone Width: 4 ft
5. Mean Roof Height 80 ft Roof Pitch: 0:12 Parapet: N/A ft
6. Components & Cladding Design Pressures Used: Zone 4: +58.7 / -63.7 P.S.F. &
Zone 5: +58.7 / -78.5 P.S.F. Worst case scenario has been calculated.
7. Design Loads: Floor: N/A Roof/Dead: N/A Roof/Live: N/A Balcony: N/A
Dock: N/A
Deck: N/A Stairs: N/A Fence: N/A Railings: N/A
8. Were Shear Walls Considered For Structure? N/A Not Applicable Explain Why Not:
9. Is A Continuous Load Path Provided? N/A
10. Design Soil Bearing Pressure: N/A Soil Test Reports Submitted? N/A
Thank you for your time and consideration. If you have any questions please call.
Respectfully,
Mark A Corson
Mark A. Corson A.I.A., NCARB
President
Mark A
Corson
Digitally signed
by Mark A Corson
Date: 2021.12.07
23:40:37 -05'00'