HomeMy WebLinkAboutMISC LETTER-
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ENGINEERING
SCANNED
BY
123 Wildcat Alley St. Lucie County
Crawfordville, FL 32327
Phone: (561) 625-6455 RECEIVED
Fax: (888) 788-2515
email: terryftlunnpe.com J U L 19 2 018
July 10, 2018 ST. Lucie County, Permitting
St. Lucie County Building and Code Regulation Division
2300 Virginia Avenue
Fort Pierce, FL 34982
Re: McGraw Townhouses at 10173 S. Ocean Drive, Jenson Beach, FL.
To Whom It May Concern:
This letter is to state that the proposed tile roofing system is adequate for design wind loads on
the roof. The Santafe clay S the will be installed in accordance with Miami -Dade product
approval NOA 15-0915.09. The polyset adhesive being used is ICP Adhesives & Sealants
product approval FL6332-R8. The large 10" paddy is rated at 134 ft-lbs.
Based on the FBC 6th edition and ASCE 7-10 for wind speed of 170 mph with an exposure
category D, I calculated the design wind pressures on the components and cladding of the
roofing system, to be +29.8 psf for the entire roof and -45.1 psf for the field, -75.7 psf for the
perimeter and -112.9 psf for corners. The perimeter and comer pressures apply to a 5-foot wide
strip in from the buildings exterior walls. The aerodynamic uplift moment on the tile based on
the design pressures is 9.3 ft-lbs in the field,12.9 ft-lbs around the perimeter and 17.2 ft-lbs in
the comers. The design moments are well under the capacity of the system_
I certify to the best of my knowledge, belief and professional judgment that the described
roofing system is in accordance with the Florida Building Code 6th edition, 2017.
THESE PLANS AND ALL PROPOSED WORT;
If I can be of further service, please advise. ARE SUBJECT TO ANY CORRECTIONS
,,,,��� REQUIRED BY FIELD INSPECTORS THAT
Sincerer,•`,AGE EAR'O,� MAYBE NECESSARYIN ORDERTO
T.E. (r i' �G'.COMPLY WITH 44APPLIGABLE CODES.
FL Reg. #
Cc: Starpro Roofing
*_
ice: ST. LUC, � COUNTY RUM
REVIEWED FOR COMP
CCS REVIEMTD BY
DATE
CONCFALED FASTENERS OR ATTACHMENTS
ARE THE RESPONSIBILITY OF THE
CONTRA,OTOR OF RECORD
OR NO INSPECTION
lki�,DE.
JOB