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<br />D.W. SMITH ENGINEERING CO. <br /> <br />Mechanical & Architectural Enlrlneerine: <br /> <br />Phone: 352-521-0865 <br /> <br />David W. Smith, P.E. <br />9909 Wallaston Drive <br />Dade City, Florida 33525 <br /> <br />Fax: 352-521-0867 E-Mail: zeDhvr27(Q),e:te.net <br /> <br />May 21,2003 <br /> <br />To: To Whom It May Concern: <br /> <br />REF. Screen Room PERMIT# 2030 <br />Wilmirth <br />5745 Yorkshire Dr. , Wedgewood Manor <br />Zephyrhill, Florida <br /> <br />I hereby certify that I have reviewed the level and flat construction site and <br />the engineering plans and find that the existing 4" slab is sufficient for the <br />support and resistance of lateral as well as uplift loads resulting from a 110 <br />mph wind acting on this screen room. <br /> <br />I therefore hereby certify that the existing 4" concrete slab may be used for <br />the attachement of the aluminum columns and base rails without <br />an added footer and that no footer is required for additional concrete to be <br />added. . <br /> <br />Basic wind speed = 11 0 mph <br />Importance factor=. 77 <br />Exposure category=B <br />Internal pressure coefficient=O.O for open structure <br />Wind force for Components and Cladding = + 10/-25 psf <br /> <br />Respectfully <br /> <br /> <br />ith=, p.e. <br /> <br />i fls%Off <br />