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Structural Engineering Letter <br />Date: 04/14/2023 <br />Project Name: Daniel Atwell <br />Project Address: 3510 S Olive St, Santa Ana, CA, 92707 <br />Contractor : Vibe Solar <br />Contractor Address : 1206 Commerce Center Dr #103 Lancaster, CA 93534 <br />Attn : To Whom It May Concern <br />A Field observation of the condition of the existing framing system was performed by an audit team from <br />Vibe Solar. From the Field observation of the property, the existing roof structure observed as follows: <br />Existing roof is supported by 2 x 4 @ 24" rafters at the solar array. The rafters are sloped at <br />approximately 4 degree and have maximum projected horizontal span of 7 feet in between <br />load bearing supports. <br />Design Criteria <br />Applicable codes: 2022 California Building Code ASCE <br />7-16 <br />Ground Snow Load: 20 psf <br />Roof Dead Load: 20 psf <br />Wind speed: 110 mph <br />Risk Category: II <br />Date Certified and <br />Signed: 04/14/2023 <br />I certify that the capacity of the structural roof framing that directly supports the additional gravity loading <br />due to the solar panel supports and modules had been reviewed and determined to meet or exceed the <br />requirements in accordance with the Design Criteria. <br />If you have any questions or concerns please contact us, <br />Engineerinc.io, <br />303 N Glenoaks Blvd Suite 200 <br />Burbank, CA 91502 <br />(747) 333 - 5991 <br />new@engineerinc.io <br />3510 S Olive St <br />05/30/23