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RE:CERTIFICATION LETTER <br />Project Address: MONICA WILLIAMS RESIDENCE <br />1730 W RICHLAND AVE <br />SANTA ANA, CA, 92703 <br />Design Criteria: <br /> - Applicable Codes = 2022 CRC/CBC/CEBC, 2021 IRC/IBC/IEBC, ASCE 7-16 and 2018 NDS <br /> - Risk Category = II <br /> - Wind Speed = 96 mph, Exposure Category B, Partially/Fully Enclosed Method <br /> - Ground Snow Load = 0 psf <br /> - ROOF AR-01: 2 x 8 @ 16" OC, Roof DL = 10 psf, Roof LL/SL = 20 psf (Non-PV), Roof LL/SL = 0 psf (PV) <br />To Whom It May Concern, <br />Sincerely, <br />September 29, 2024 <br />Based on this evaluation, I certify that the alteration to the existing structure by installation of the PV system meets the prescriptive <br />compliance requirements of the applicable existing building and/or new building provisions adopted/referenced above. <br />Additionally, the PV module assembly including attachment hardware has been reviewed to be in accordance with the manufacturer’s <br />specifications and to meet and/or exceed the requirements set forth by the referenced codes. <br />A structural evaluation of loading was conducted for the above address based on the design criteria listed above. <br />Existing roof structural framing has been reviewed for additional loading due to installation of PV Solar System on the roof. The structural <br />review applies to the sections of roof that is directly supporting the solar PV system. <br />Mighty Engineering Co | 1704 Roxborough Rd Charlotte, NC 28211 | (980) 689.9776 | info@mightyengineeringco.com pg 1 of 5 <br />1730 W Richland <br />Ave3/19/2025