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C , <br /> August 04, 2020 <br /> Re: Tesla Retrofit PV Structure Qualification Certification Letter <br /> Tesla's Retrofit PV.product is an assembly consisting of Tesla mounting hardware for comp <br /> shingle or tile roof coverings and PV modules using the Zep Compatible frame. Please refer to <br /> the product data sheets, UL listing, and installation documentation for further information. <br /> The Tesla Retrofit PV assembly does not exceed 3.5psf. Installation of the Tesla Retrofit PV <br /> assembly offsets load in areas of the roof designed to support a roof live load and provides a <br /> lower-friction surface than the existing roof. The weight of the offset live load or difference in <br /> accumulated roof snow load as a result of reduced surface friction (in regions where the roof <br /> snow load is greater than the roof live load) will exceed the weight of the PV assembly. <br /> Consequently, the net additional loading impact to existing gravity load resisting elements is <br /> less than 5% for the framing of pitched roof structures with existing roofing material comprised <br /> of comp shingle or tile. Note that this assessment does not apply to structures with existing <br /> metal roof coverings in regions where roof snow load is greater than roof live load. <br /> I certify that installation of the Tesla Retrofit PV assembly on existing structures with: a) existing <br /> roofing material comprised of comp shingle or tile roof coverings and b) with no existing <br /> structural damage; meets the criteria outlined in Section 403 of the IEBC (alterations to existing <br /> structures) and is therefore permitted by code without alterations or strengthening of the existing <br /> framing. <br /> �`��% As <br /> �O %�' ...•��ii��, <br /> �`♦G • 1GENS Q �� Digitally signed by Nick <br /> � •• v ••2 Nick Gordon'Gorcion <br /> * No.81915 * C Date:2020.08.0412:20:08 <br /> b = -07100' <br /> �� , •� Q <br /> E <br /> i •••� THIS ITEM HAS BEEN ELECTRONICALLY SIGNED AND SEALED <br /> By <br /> LAS GORDON <br /> N THE DATE SHOWN USING A <br /> ,,�,� •• �,,�Q``,,,, DIGITAL O O L SIGNATURE.PRINTED COPIES OF THIS DOCUMENT <br /> III tits ARE NOT CONSIDERED SIGNED AND SEALED AND THE <br /> SIGNATURE MUST BE VERIFIED ON ANY ELECTRONIC COPIES. <br /> Nick Gordon, P.E. <br /> Associate Manager, Professional Engineering, Tesla_ <br /> ngordon(a)-tesla.com <br /> Licenses: AZ, CO, CT, FL, MA, MD, MI, NH, NV, NY, OR, PA, RI, SC, TX &VT <br /> T S S L Fi Tesla,Inc. <br /> 3500 Deer Creek, Palo Alto.CA 9130n <br />