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HomeMy WebLinkAboutLETTER ABOUT GLASS WINDOWSMr. Bob Eastman February 6, 1996 City of Pt. St. Lucie Building Department 121 S.W. Pt. St. Lucie Blvd. Pt. St. Lucie, FL 34984 Reference: Katzman Residence Lot 109 Sabal Creek, The Reserve Subject: Butt Glass i Dear Sirs, In regard to the residence currently under review, my calculations show that the three sided 24w X 72w X 24w X 62h 3/8"thk. mitered, tempered butt glass window installations will each have a deflection of less than 1/2". The 1-3/4" X 4" open back, aluminum flush glaze can be anchored to the concrete block with #14 X 2" steel flat head Phillips screws through pressure treated 1X3 wood bucks (shot into the block with 8d case hardened nails or attached with 3/16" X 2-1/4" long Tapcon Concrete screws every 18"). The flush glaze may, alternately, be attached directly to the CBS using Tapcon concrete screws--3/16" dia. X 1-3/4" long @ 18" o/c. This installation will withstand the applied force of 41 psf resulting from a shape factor of 1.65 and a 110 mph wind load and should meet the requirements of the Palm Beach County and SBC building codes. If you have any questions , please contact me at your convenience. Thank you. Sincerely Dr. Ernest A. Kuonen, Florida Registered Engineer #22920