HomeMy WebLinkAboutEngineering Lanni
M.A. CORSON & ASSOCIATES, Inc.
ARCHITECTURE * STRUCTURAL DESIGN
412 Colorado Ave., Stuart, Fl. 34994
(772) 223-8227 * Lic. #AR91665
Date: March 31, 2020
To: St. Lucie County - Building & Code Regulation Division
Re: Louis Lanni
9940 S. Ocean Drive Unit 1108 (Middle)
Jensen Beach, Fl. , 34957
It is acceptable to replace existing single hung openings and mullion bars for the address
listed above with PGT Systems units as follows:
1) S.H. - The PGT Window Systems "SH 7700A" Impact Aluminum single hung
window has a Miami Dade NOA #18-0430.06. The nominal wind speed is 132 mph and
the ultimate wind speed is 170 mph. It has a +80 /-110 design pressure and has a large
missile "D" approval and HVHZ .
2) MULLION BARS - The Series "PGT" Clipped Extruded Aluminum Tube Mullion -
L.M.I has a Miami Dade NOA # 17-0630.01. The nominal wind speed is 132 mph and
the ultimate wind speed is 170 mph. It has a +170.0 /-170.0 design pressure and has a
small missile "D" approval and HVHZ .
The actual building design pressures of address listed above in Zone 4 is +57.3 / -62.3
The building has a type II classification and exposure category "D" for the 6th Edition of
the FBC (2017). Worst case scenario has been calculated .
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