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Note to Building Official: <br />Based upon a review of the proposed plans I am confident that the <br />existing roof framing system is capable of safely supporting the additional <br />loads caused by the new solar photovoltaic energy system. The contractor <br />shall field verify that the existing roof structure is in its original permited <br />condition and verify that it can support the normal code required roof live <br />loads. Attached in this package are several calculations showing that the <br />roof members can support the additional weight of the solar array. <br />Furthermore, an analysis of the solar array's support for wind forces and a <br />seismic analysis of the existing structure are also included. <br />Check Existing 2X4 Roof Rafters @ 24" O.C.: <br />(Assume max rafter span = 7.83 ft.) <br />w = 30 psf x 2 ft. = 60 plf <br />Total load on rafters = 60 plf x 7.83 ft. = 470 lbs <br />Sht # 2 of 7 <br />2023-2182 Tenco Solar Naser Kianfard April 1, 2023 <br /> Loyd W. Martin Professional Engineer, Inc. <br />9924 Universal Boulevard #224-406 Orlando, FL 32819 Tel:1.310.464.1804 <br /> Email: loydwmartin@gmail.com www.loydwmartin.com <br />5 <br />:'/// <br />5 <br />7.83' <br />1338 N Custer St <br />05/01/23