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Docuaign Envelope ID: <br /> � ����3 �� 1� 1G�0VVAs�onB�d. <br /> ��i ���� ��� �������� Lehi, LIT 84U43 <br /> Structural Group <br /> J. Matthew Walsh, PE Kirk M.Nelson, SE Samuel Brown, PE- Civil <br /> Director of Engineering Structural Engineering Structural Engineering <br /> Jannes.waish@vivincso/ar.cowr kirk.oe/son@vivin*solaccmn, aaoobmomm@,ivintsolancmm <br /> September 1O.2O2O <br /> ` <br /> Re: Structural Engineering Services <br /> Zenon Structure <br /> 7130 Boxer Round P|, ZephyrhiUs, FL <br /> S'6437893; FL-01 <br /> Tn Whom b May Concern: <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 aiza, opacing, and <br /> condition of existing structural framing members. Information gathered during the site visit includes <br /> photographs, sketches, and vorfiooUonforms. <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 informction, 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 bm our review and <br /> . evaluation: <br /> A. Description ofStructure: <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 bettor with standard <br /> construction components. The designed areas of the home consist of the following framing methods: <br /> ° Roof Section: Prefabricated trusses ot24'' oncenter. Survey photos indicate that there was free access <br /> ho verify the framing size and spacing. <br /> B. Loading Criteria <br /> 14.GGPSF= Dead Load (noofing/framing) <br /> (solar panels/mounting hardware) <br /> 17.G8PSF=Total Dead Load <br /> (based nn 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 inoto||nUon, the roof framing members appear unstable or deflect non-uniform|y, our office <br /> should be notified before proceeding with the installation. <br /> ° EooFauten Solar Installation W;onuai, which can be found on the EooFastan Solar woboiba <br /> . (wwmv.eoofostanoo|er.com). <br /> 2. The solar panels are 11/2" Mhick Atno time will the panels be mounted higher than 10^ above the existing <br /> surface of the roof. <br /> Page Yofz ��������z� ,���� �� <br /> � <br /> nxmwmmoa@� ��»�v��� � <br />