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• <br /> The proposed installation will be 6" max. above the roof surface (flush mounted) and parallel to the roof surface. <br /> Therefore, any increase in wind loading on the building structure from the solar panel installation is expected to be <br /> negligible. Wind is the governing load case. Because the increase in loading is not increased by more than 10%, per <br /> section 807.5 of the adopted IEBC,the structure need not be altered for lateral loading. <br /> Loading on the panels themselves has been calculated in accordance with the relevant provisions of ASCE 7-10.This <br /> loading has been used to verify the adequacy of the connection specified above. Connection locations should be in <br /> accordance with design drawings. <br /> Conclusion <br /> The roof structure need not be altered for either gravity or lateral loading. Therefore, the existing structure is <br /> permitted to remain unaltered. Connections to the roof must be made per the "Roof Connection Details" section <br /> above.Copies of all relevant calculations are enclosed. <br /> Limitations and Disclaimers <br /> The opinion expressed in this letter is made in reliance on the following assumptions: the existing structure is in <br /> good condition;the existing structure is free from defects in design or workmanship; and the existing structure was <br /> code-compliant at the time of its design and construction. These assumptions have not been independently <br /> verified, and we have relied on representations made by the property owner and his or her agents with respect to <br /> the foregoing.The undersigned has not inspected the structure for patent or latent defects. <br /> Electrical engineering is beyond the scope of this analysis.Solar panels must be installed per manufacturer <br /> specifications. Structural design and analysis of the adequacy of solar panels, racks, mounts, rails,and other <br /> components is performed by each component's respective manufacturer and the undersigned makes no statement <br /> of opinion regarding such components.This letter and the opinions expressed herein are rendered solely for the <br /> benefit of the permitting authority(city or county building department),and may not be utilized or relied on by any <br /> other party. <br /> If you have any questions or concerns, please contact our office at (509)-931-1663, or email me directly at <br /> Trevor.Jones@solgenpower.com. <br /> Sincerely, <br /> Trevor A.Jones, P.E. <br /> oyyns�;' .9 <br /> ,4F, MCA <br /> CJY <br /> OP <br /> i y 2011.48.8 Q <br /> S/0NAt.ty. <br /> 11/11/2020 <br /> �I � <br />