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02/14/2026 <br />RE: Structural Certification for Installation of Residential Solar <br /> Monika Stamp:1009 W River Ln Unit #2, Santa Ana, CA 92706 <br />Attn: To Whom It May Concern <br />Design Criteria <br />Code 2025 California Residential Code (ASCE 7-22) <br />Risk category II Wind Load (component and Cladding) <br />Roof Dead Load Dr 10 psf V 95 mph <br />PV Dead Load DPV 3 psf Exposure B <br />Roof Live Load Lr 20 psf <br />Ground Snow S 4 psf <br />If you have any questions on the above, please do not hesitate to call. <br />Sincerely, <br />Eugene Munyanziza, P.E.Signed 02/14/2026 <br />EV Engineering, LLC <br />projects@evengineersnet.com <br />http://www.evengineersnet.com <br />Exp: 06/30/2026 <br />This Letter is for the existing roof framing which supports the new PV modules as well as the attachment of the <br />PV system to existing roof framing. From the field observation report, the roof is made of Composition shingle <br />roofing over roof plywood supported by 2X10 Rafters at 12 inches. The slope of the roof was approximated to be <br />18 degrees. <br />After review of the field observation data and based on our structural capacity calculation, the existing roof <br />framing has been determined to be adequate to support the imposed loads without structural upgrades. <br />Contractor shall verify that existing framing is consistent with the described above before install. Should they <br />find any discrepancies, a written approval from SEOR is mandatory before proceeding with install. Capacity <br />calculations were done in accordance with applicable building codes. <br />projects@evengineersnet.com <br />http://www.evengineersnet.com