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TRIBUTARY AREAS: <br />Roof area = 2690 sq. ft. = 2690 sq. ft.RDL =14 psf <br />Exterior wall area = 1648 sq. ft., consider upper 1/2 = 824 sq. ft. EW = 16 psf <br />Interior wall area = 1600 sq. ft., consider upper 1/2 = 800 sq. ft. IW = 9 psf <br />Solar panel area = 422 sq. ft.SP = 3 psf <br />Solar panel quantity = 20 <br />Roofing weight reduction at panels = 0 lb. <br />DEAD LOAD AT ROOF: <br />(E) Dead load = (Roof area)*RDL+1/2(EW area)*EW+1/2(IW area)*IW <br />(E) Dead load = 58044 lb <br />SP Dead load = Solar panel area*SP <br />SP Dead load = 1267 lb <br />(N) Dead load = (E) Dead load + SP Dead load <br />(N) Dead load = 59,311 lb <br />Consider 50% of (E) trib roof DL: <br />Seismicsp DLsp 1267 lbs. <br />Seismic(E)DL(E)29022 lbs. <br />Dead load increase ≤ 10%, OK <br />= = = 0.04 → 4% increase <br />CHECK SEISMIC LOAD INCREASE: <br />23-1022-PV Page 511/1/2023 <br />929 E Jonquil Rd - <br />2018144011/27/2023