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Project Name: 5514 Rhonda Avenue, Santa Ana, California 92703 <br />Issued Date: 08/09/2024 <br />Solar Array Installation Calculations: Page | 4 <br />IV.Seismic Loads <br />Seismic Weight <br />Existing Roof Dead Load:8.6 psf <br />Roof Dead Load @ Panel Locations:11.6 psf <br />Quantity of Pre-Existing Panels:0 <br />% of Roof w/ Solar Panels:21.0% <br />Equiv. Seismic Weight Increase:7.3% <br />Per Section 503.4 of the 2022 CEBC, any existing lateral load-carrying element whose demand-capacity ratio <br />with the alteration considered is not more than 10% greater than its demand-capacity ratio with the alteration <br />ignored shall be permitted to remain unaltered. <br />Since there is no increase of seismic weight greater than 10%, the existing lateral load-carrying elements are <br />adequate for the alteration. <br />5514 W Rhonda <br />Ave11/27/2024