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Seismic Considerations: 10% Lateral Loading Increase Check <br />Seismic Design Criteria (per USGS) <br />Latitude Longitude Soil Site Class Ss S1 SDC <br />33.640302 -117.769442 D 1.237 0.443 D <br />Site Conditions <br />Module Type:Silfab: SIL-440QD-DCA Total Mods:29 Sum of Roof Areas w/ PV:7200 <br />Load Information Area Dead Load Total Weight <br />Existing Roof 7200 sq ft 10 psf 72000 lb <br />Ceiling 7200 sq ft 5 psf 36000 lb <br />Interior Walls (Top Half)1358 sq ft 5 psf 6788 lb <br />Exterior Walls (Top Half)1358 sq ft 9 psf 11540 lb <br />System Weight PV 522 sq ft 3 psf 1566 lb <br />Lateral Loading 10% Check (2018 IEBC Section 503.4) <br />Net Weight of PV System Net Weight of Roof % Increase of LFRS Final Result <br />1566 lb 126328 lb 1.24%Pass