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Docu-Sign Envelope ID:7FBB976C-F93F-4B2A-8632-2A5DFF93FCBB <br /> vw'nt solar° 18®® hShU� Blvd. <br /> A sunrun COMPANY. <br /> J.Matthew Walsh, PE Kirk M. Nelson, SE Samuel Brown, PE.Civil <br /> Director of Engineering Shuctural Engineering Structural Engineering <br /> james.walsh@sunrun.com kirknelson@sunrun.com sam.brown@sunrun.com <br /> December 18, 2020 i <br /> Re: Structural Engineering Services <br /> Colon Structure <br /> 36046 Stable Wilk Ave; Zephyrhilis, FL <br /> S-6532783; CAD Version: 5; FL-01 <br /> To Whom It May Concern: <br /> i <br /> We have reviewed the following information regarding solar panel installation on the roof of the above referenced <br /> structure: <br /> 1. Site visit by a representative .from our, office under my supervision identifying specific interior and <br /> exterior site information including the condition of the existing roof system and the size, spacing, and <br /> condition of existing structural framing members. .Information gathered during the site visit includes <br /> photographs, sketches, and verification forms. <br /> 2. Design drawings of the proposed PV System layout, including details to mount the new solar panels to <br /> the existing roof. <br /> Based on the above information, we have evaluated the structural capacity of the existing roof system to support <br /> the additional loads imposed by the solar panels' and have the following comments related to our review. and <br /> evaluation: <br /> A:.Description of Structure: <br /> The existing structure has typical wood,framing construction with a maximum of two layers of composite shingle <br /> roofing. All wood material utilized for the roof system is assumed to be Southern Pine#2 or better with-standard <br /> construction components. The designed areas of the home consist of the following framing methods: <br /> • Roof Section: Prefabricated trusses at 24" on center. Survey photos indicate that there was free access <br /> to verify the framing size and spacing. <br /> • Roof Section: Prefabricated trusses at 24" on center. Survey photos indicate that there was free access <br /> to verify the framing size and spacing. <br /> B. Loading Criteria <br /> 14.66 PSF= Dead Load (roofing/framing) <br /> 3.00 PSF= Dead Load (solar panels/mounting hardware) <br /> 17.66 PSF =Total Dead Load <br /> 20 PSF= Roof Live Load (based on local requirements) <br /> Wind speed of 145 mph (based on Exposure Category D-the total area subject to wind uplift is calculated for the <br /> Interior,-Edge, and Corner Zones of the dwelling.). <br /> C.Solar Panel,Anchorage <br /> 1.. Installation shall proceed.in accordance.with;the applicable guidelines and, recommendations indicated below. <br /> If, during solar panel installation, the roof framing members appear unstable or deflect non-uniformly, our office <br /> should be notified before proceeding with the installation. <br /> • SnapNrack Installation Manual,which can be found on the SnapNrack website(https:Hsnapnrack.com). <br /> vivint.Solar° <br /> Page Iof2 Asunrun COMPANY <br />