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TRIBUTARY AREAS: <br />Roof area = 1600 sq. ft. = 1600 sq. ft. RDL = 14 psf <br />Exterior wall area = 1280 sq. ft., consider upper 1/2 = 640 sq. ft. EW = 16 psf <br />Interior wall area = 1280 sq. ft., consider upper 1/2 = 640 sq. ft.IW = 9 psf <br />Solar panel area = 219 sq. ft.SP = 3 psf <br />Solar panel quantity = 11 <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 = 38400 lb <br />SP Dead load = Solar panel area*SP <br />SP Dead load = 657 lb <br />(N) Dead load = (E) Dead load + SP Dead load <br />(N) Dead load = 39,057 lb <br />Consider 60% of (E) trib roof DL: <br />Seismicsp DL sp 657 lbs. <br />Seismic(E)DL (E)23040 lbs. <br />Dead load increase ≤ 10%, OK <br />→ 3% increase <br />CHECK SEISMIC LOAD INCREASE: <br />== = 0.03 <br />22-0423-PV 4/26/2022 Page 6 <br />1920 S Kilson Dr <br />05/31/22