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2045 W Martha Ln - Plan
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Last modified
5/30/2025 1:40:13 PM
Creation date
5/30/2025 8:00:52 AM
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Plan
Permit Number
20174637
101108410
Full Address
2045 W Martha Ln
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101108410 - Permit
(Permit - Plan)
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\Building\Permits\M\Martha Ln\2045 W Martha Ln
20174637 - Permit
(Permit - Plan)
Path:
\Building\Permits\M\Martha Ln\2045 W Martha Ln
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___________________________________________________________________________________________ <br />28202 Cabot Road, Suite 300 <br />Laguna Niguel, CA 92677 <br />949-371-5238 <br />info@LagunaEngineers.com <br />To: Nerd Power <br />Subject: Certification Letter <br />Hoffmann Residence <br />2045 W Martha Ln <br />Santa Ana, CA. 92706 <br />To Whom It May Concern, <br />Design Criteria: <br />● Applicable Codes = 2019 CBC, ASCE 7‐16 <br />● Roof Dead Load = 9 psf (Roof 1,2&3) <br />● Roof Live Load = 20 psf <br />● Wind Speed = 110 mph (Vult), Exposure C <br />● <br />Sincerely, <br />Principal Engineer <br />Paymon Eskandanian, S.E. <br />The scope of this report is strictly limited to an evaluation of the fastener attachment, underlying framing and supporting <br />structure only. The attachment's to the existing structure are required to be in a staggered pattern to ensure proper <br />distribution of loading. All panels, racking and hardware shall be installed per manufacturer specifications and within specified <br />design limitations. All waterproofing shall be provided by the manufacturer. Laguna Pacific Group assumes no responsibility <br />for misuse or improper installation of the solar PV panels or racking. <br />Please contact me with any further questions or concerns regarding this project. <br />Attachment: 1 ‐ 5/16 dia. lag screw with 2.5 inch min. embedment <br />depth, at spacing shown above. <br />October 19, 2021 <br />The roof structures of (Roof 1,2&3) consist of composition shingle roof, sloped at 20 degrees. The roofing material is <br />supported by roof plywood and skip sheathing and by the roof framing below. <br />The existing roof framing systems of (Roof 1,2&3) are judged to be adequate to withstand the loading imposed by the <br />installation of the solar panels. No reinforcement is necessary. <br />The spacing of the solar standoffs should be kept at 48" o.c. for landscape and 48" o.c. for portrait orientation, with a <br />staggered pattern to ensure proper distribution of loads. <br />A jobsite observation of the condition of the existing framing system was performed by an audit team of Nerd Power as a <br />request from Laguna Pacific Group. All review is based on these observations and the design criteria listed below and only <br />deemed valid if provided information is true and accurate. <br />On the above referenced project, the roof structural framing has been reviewed for additional loading due to the installation <br />of the solar PV addition to the roof. The structural review only applies to the section of the roof that is directly supporting the <br />solar PV system and its supporting elements. The observed roof framing is described below. If field conditions differ, <br />contractor to notify engineer prior to starting construction. <br />Hoffmann Residence Santa Ana CA SE Calcs.xlsm 1 <br />12/21 <br />2045 W Martha Ln <br />12/13/21
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