HomeMy WebLinkAboutENG MillerM.A. CORSON & ASSOCIATES, Inc.
ARCHITECTURE * STRUCTURAL DESIGN
412 Colorado Ave., Stuart, Fl. 34994
(772) 223-8227 * Lic. 4AR91665
To: St. Lucie County - Building & Code Regulation Division
Date: December 10, 2020
Re: Ana Maria Miller
8650 S. Ocean Drive Unit 905(Middle)
Jensen Beach, Fl. , 34957
It is acceptable to replace existing fixed glass window and sliding glass door
openings for the address listed above with the units as follows:
1) S.H.- The PGT Window Systems "PW 7620A" Impact Aluminum single hung window has a
Miami Dade NOA #20-0401.09. The nominal wind speed is 132 mph and the ultimate wind
speed is 170 mph. It has a+100 /-145.8 design pressure and has a large missile "D" approval and
HVHZ. This unit is located in a Zone 4.
2) S.G.D. - The PGT "670" series aluminum S.G.D. has a Miami Dade NOA #20-0429.07.
The nominal wind speed is 132 mph and the ultimate wind speed is 170 mph.
It has a +90 / -140 design pressure. It has a small and large missile "D"
approval HVHZ. This unit is located in a Zone 4.
SCOPE OF WORK: New fixed window and sliding glass door replacement.
DESIGN PARAMETERS AND ASSUMPTIONS USED:
1. DESIGN CODE: Florida Building Code Sixth Edition (2017) with 2020 Supplements using
ASCE 7-10
2. Structure Designed: Enclosed
3. Risk Category: H Exposure Category: D
4. Design Wind Velocity 170 mph End Zone Width: 4 ft
S. Mean Roof Height 153 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: NIA 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,
Ma v'kIA Corso-Vtw
Mark A. Corson A.I.A., NCARB
President
Digitally signed by
Mark A Corson
Mark A DN: c=US,
o=Unaffiliated,
ou=A01410D0000017
Corson 1 n—Mark A Corson
cn=Mark A Corson
Date: 2020.12.10
14:19:05-05'00'