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Final Structural Report <br />PROJECT NUMBER: AE230325 | PROJECT NAME: CPT HARBOR ANA <br />ACROS ENERGY | acrosenergy.com | 512.663.9058 | info@acrosenergy.com 4 / 23 <br /> <br />3. Roof Framing Reserve Capacity <br />The structure was analyzed for the estimated dead load listed below together with the proposed PV <br />addition. Dead Load breakdown is based on the dead load observed at the site and snow load is from the <br />governing building code. Acros visited the site on 12/04/2023 and documented the roof framing <br />members, which were analyzed, and their design checked against the listed loads. Acros found the roof <br />framing members to have adequate capacity to support the listed loads. <br />Estimated Loads: <br />Roofing and Insulation 4.0 psf <br />OSB Deck 2.0 psf <br />Framing 4.0 psf <br />2x4 Purlin 1.0 psf <br />Sprinkler + MEP + Miscellaneous 3.0 psf <br />Total Girder Dead Load 14.0 psf <br />PV 9.0 psf <br />Snow Load 0.0 psf <br />Total Load 23.0 psf <br />Per 2022 California Building Code section 1607.14.4, roof live loads need not be applied to the area <br />covered by photovoltaic panels where the clear space between the panels and the roof surface is 24 inches <br />or less. The PV reserve capacity for this roof is given with the understanding that low profile solar panels <br />with a maximum height of 24 inches, and live load is taken as zero. <br />Moreover, per 2022 California Existing Building Code section 503.3, an existing structure shall be replaced <br />or altered as needed only if an alteration causes an increase in total design loads of more than 5 percent. <br />Therefore, based on Acros’ analysis, the existing roof at CPT Harbor Ana building located at 2721 S Harbor <br />Blvd, Santa Ana, CA, 92704, is feasible for added solar PV arrays up to 9 psf. <br /> <br />4. Approved PV system Installation Zone <br />The green shaded area below has a reserve capacity of 9 psf. <br />No solar PV arrays should be placed on the red marked areas. <br />The roof areas subject to ponding, if any, are highlighted with red in the plan below. The additional load <br />due to ponding is calculated in accordance with IBC Section 1611. It is critical to inspect and maintain the <br />primary and secondary roof drainage systems to ensure proper operation at all times. <br />