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Project : <br />Project Number : <br />By : <br />Date : <br />UNIRAC <br />1411 Broadway Blvd, NE <br />Albuquerque, NM 87102 <br />RE: Solar Array Installation at 3117 S Pacific Ave, Santa Ana, CA 92704, USA <br />To Whom it May Concern, <br />CODE REFERENCES: <br />BUILDING CODE: 2022 CALIFORNIA BUILDING CODE <br />2021 INTERNATIONAL BUILDING CODE <br />ASCE 7-16 <br />SCOPE OF WORK: <br />DESIGN PARAMETERS <br />RISK CATEGORY : <br />DESIGN WIND SPEED : mph <br />WIND EXPOSURE : <br />GROUND SNOW LOAD : psf <br />SEISMIC DESIGN CATEGORY : <br />EXISTING ROOF STRUCTURE <br />ROOF : 2x8 Rafters @ 24" O.C. <br />ROOF MATERIAL : Asphalt Shingles <br />CONNECTION TO ROOF STRUCTURE <br />MOUNTING CONNECTION : <br />Allen Jensen <br />PE <br />04-29-2025 <br />Roof structural framing plan has been reviewed for additional loading due to installation of the roof mounted <br />solar PV addition. The structural review that follows, including plans and calculations, only apply to the section of <br />the roof that is directly supporting the solar PV system and its supporting elements. <br />29 April 2025 <br />Per your request, we have reviewed the existing structure at the above referenced site. The purpose of our review <br />was to determine the adequacy of the existing structure to support the proposed installation of solar panels on the <br />roof per layout plan. <br />(2) #14 WOOD SCREW w/ MIN. 1.55" EMBEDMENT INTO (E) 2x FRAMING <br />MEMBER @ MAX. 72" o.c. ALONG RAILS <br />(2) RAILS PER ROW OF PANELS, EVENLY SPACED. PANEL LENGTH <br />PERPENDICULAR TO RAIL NOT TO EXCEED 67.8" <br />II <br />95 <br />B <br />0 <br />*null <br />Page 1