Laserfiche WebLink
Project: <br />Location: <br />STRUCTURAL CERTIFICATION LETTER <br />To: <br />Project: <br />To Whom It May Concern <br />DESIGN CRITERIA: <br />DESCRIPTION OF EXISTING ROOF STRUCTURE: <br />ROOF 1: 2x8 Rafters @ 24" o.c. with a maximum unsupported horizontal span of 14'-0" and a slope of 18 degrees <br />Max PV mount spacing- Landscape config: 48", Portrait config: 48", Pattern: Staggered (ROOF 1) <br />Attachment to Framing: (1) 5/16" Lag Screw(s) w/ 2.5" min embed @ above spacing (ROOF 1) <br />Paymon Eskandanian, SE, PE <br />Laguna Consulting Engineers <br />Roof Dead Load(s): 8 psf, Comp Shingles (ROOF 1) <br />CONCLUSIONS: <br />Please contact me should you have any questions or comments regarding this project. <br />825 North Lacy Street <br />Santa Ana, CA 92701 <br />David Smith <br />Santa Ana, CA <br />30011 Ivy Glenn Dr, Ste 219, Laguna Niguel, CA 92677 <br />info@lagunaengineers.com <br />January 9, 2025 <br />CS&E <br />26074 Avenue Hall Ste 13 <br />Santa Clarita, CA 91355 <br />David Smith - Solar Project <br />New PV System Dead Load(s): 2.63 psf <br />Applicable Codes: 2022 California Building Code, ASCE 7-16 <br />Risk/ Occupancy Category: II <br />Roof Live Load(s): 20 psf, 0 psf Under PV <br />Ground Snow Load: 0 psf <br />Basic Wind Speed: 110 mph, Exposure Category: C <br />A jobsite observation of the condition of the existing framing system was performed by an audit team of CS&E as a request from Laguna <br />Consulting Engineers. All review is based on these observations and the design criteria listed below and only deemed valid if the provided <br />information is true and accurate. <br />The scope of this report is strictly limited to an evaluation of the fastener attachment, underlying framing, and supporting structure with the <br />additional loading due to the installation of the solar PV panels. The design of racking (rail spans, mounting hardware, etc.), PV panels and all <br />other structure is by others and shall be per the specified design criteria. Laguna Consulting Engineers assumes no responsibility for improper <br />installation of PV panels, racking, or waterproofing. Prior to starting construction, contractor shall verify the framing sizes, spacings, and spans <br />noted in the stamped plans and this letter and notify the Engineer of Record of any discrepancies noted. This review relies on the roof’s <br />structural system having been originally designed and constructed in accordance with the building code requirements and having been <br />maintained to be in good condition.  <br />ROOF 1: Adequate to support the imposed loading - No structural upgrades required <br />Page 1 <br />12/31/25 <br /> <br /> <br /> <br /> <br /> <br /> <br />HISTORIC-825 N <br />Lacy St2/18/2025