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April 3, 2013 lawrence R. Phelus, P.E. <br />Civil a Structural Engineering <br />Lawrence R. Phelps, RCE 35280, Calif. Lic. Renewal 9/30/2013 <br />31130 Avenida Del Reposo - Temecula, California 92591 <br />Phone (951) 694-6336 - Fax (951) 694-6326 <br />Subject: <br />Structural engineering certification for SunPower SF System Planning & Assembly <br />Installation Manual by SunPower Corporation, copyright 2007 and Unirac Code-Compliant <br />Installation Manual 809. publication 100114-lcc, copyright January 2010. to be compliant with <br />current applicable building codes. <br />Structural engineering certification for Fast Jack installation manual. published March, <br />2006, with updated installation information & detailsfor Fast Jack products FJ-300-18 and FJ-450-18 <br />and structural engineering certification for installation manual by Quick Mount PV. published August, <br />2011 for the installation ofsolar module supporting rail-to-roofattachments and roofjlashing <br />(ICC/ES report No. ESR-2835) to be compliant with current applicable building codes. <br />To whom it may concern, <br />The undersigned engineer has reviewed the subject manuals with respect to: <br />I. The Procedure to Determine the Total Design Wind Load and Solar System Design Load. <br />II. The Procedure to Select Rail Span and Rail Support Type and <br />III. The Procedure to Select Roof Mount Attachment Support Type & Installation Method, <br />which aids the designer in the calculations of design wind forces, seismic forces: load combinations. <br />rail span selection and roof mount design & installation. has checked these procedures and found that <br />the calculations associated with the procedures in these manuals are in compliance with the applicable <br />codes listed: <br />1. The 2010 California Building Code (CBC) which is based on the 2010 International <br />Building Code (IBC): <br />2. The ASCE/SEI Standard 7-05 (American Society of Civil Engineers and Structural <br />Engineering Institute) Minimum Design Loads for Buildings and Other Structures and <br />3. Aluminum Design Manual: Specifications and Guidelines for Aluminum-St•wetures by,th 1Aluminum Association: Washington, D.C. : 2000 //7 <br />Very truly'§ours //0**R.,<6) <br />C - f/j?f* ,L Ej /:121,64/.31 09500 itLa*rence R. Phelps. P.El < 14 .RCE 5280 / 11 <br />cc: SunPro Solar general jile -6-,3/ P <br />1. <br />l <br />r.