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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:43 Sum of Roof Areas w/ PV:2961 <br />Load Information Area Dead Load Total Weight <br />Existing Roof 2961 sq ft 10 psf 29610 lb <br />Ceiling 2961 sq ft 5 psf 14805 lb <br />Interior Walls (Top Half)871 sq ft 5 psf 4353 lb <br />Exterior Walls (Top Half)871 sq ft 9 psf 7400 lb <br />System Weight PV 774 sq ft 3 psf 2322 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 />2322 lb 56169 lb 4.13%Pass