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JOB NO.: U2880.1484.211 <br />SUBJECT: LOAD COMPARISON <br />PROJECT: Praxedis, Candido & Prisca Residence <br />Summary of Loads <br />Existing With PV Array <br />D [psf]6 9 <br />Lr [psf]20 0 <br />S [psf]0 0 <br />Maximum Gravity Loads: <br />Existing With PV Array <br />(D + Lr) / Cd [psf] 21 10 ASCE 7-16, Section 2.4.1 <br />(D + S) / Cd [psf] 7 10 ASCE 7-16, Section 2.4.1 <br />Maximum Gravity Load [psf]: 21 10 <br />Ratio Proposed Loading to Current Loading:50% OK <br />The gravity loads, and thus the stresses of the structural elements, in the area of the <br />solar array are either decreased or increased by no more than 5%. Therefore, the <br />requirements of Section 503.3 of the 2019 CEBC are met and the structure is permitted <br />to remain unaltered. <br />(Cd = Load Duration Factor = 0.9 for D, 1.15 for S, and 1.25 for Lr) <br />3702 S Alder St <br />11/05/21