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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:LONGi Green Energy Technology Co Ltd: LR5-54HABB-400MTotal Mods:24 Sum of Roof Areas w/ PV:3484 <br />Load Information Area Dead Load Total Weight <br />Existing Roof 3484 sq ft 14 psf 48776 lb <br />Ceiling 3484 sq ft 5 psf 17420 lb <br />Interior Walls (Top Half)944 sq ft 5 psf 4722 lb <br />Exterior Walls (Top Half)944 sq ft 9 psf 8027 lb <br />System Weight PV 432 sq ft 3 psf 1296 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 />1296 lb 78946 lb 1.64%Pass <br />3340 S Crawford <br />Glen4/28/2025