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DEI STRUCTURAL <br /> DIBBLE ENGINEERS INC EVALUATION REPORT <br /> May 31, 2023 <br /> W.R. Hanson, Inc. 8 a u ED (� <br /> Attn: Mr. Patrick Perkins D ECEOVL�12510130th Lane NEOCT 12 2023 <br /> Kirkland, WA 98034 SEP 18 2023 <br /> Re: 1429 Broadway Remodel CITY OF E vE ETT CITY OF EVERETT <br /> 1429 North Broadway Avenue, Everett, WR61Services Permit Services <br /> DEI Project#21-406 <br /> Dear Mr. Perkins: <br /> DEI has been involved with a wall removal in the existing commercial building at 1429 Broadway during an <br /> architectural remodel. In addition to our scope of work,we were asked by your company to respond to a City of <br /> Everett permit response comment addressing the addition of solar panels to the existing roof. This letter addresses <br /> that comment and our response. <br /> City of Everett, VVA Commer:. <br /> "The arrays are supported by roof construction consisting of 2x4 framing at 24-inch spacing per Sheet PV-3. <br /> Calculations substantiating that the roof structure is adequate for the increased loading should be submitted <br /> for review. The additional load should be combined with all existing loads including snow loading complying <br /> with current code values. See IBC Sections 101.4.7 and 1605.1, and IEBC Section 806.2. Note that the 5% <br /> threshold should not be considered with current snow loads as these likely exceed the values used in the <br /> original design." <br /> DEI Res^ <br /> DEI has observed the existing loads and new loading demand due to the added solar panels to the various <br /> roof framing conditions. Based on the panel layout and support points, we identified six controlling loading <br /> conditions. We have assumed typical materials for the roof trusses with 2x4 chord and web members and <br /> the 2x12 rafters and used these assumptions for the capacity calculations. <br /> The added gravity and lateral loads imposed by the solar panels do not increase the truss or rafter demand <br /> beyond their calculated capacities. Please refer to the attached calculation package. Variations from the <br /> provided panel layouts, connection points,and connectors may impose a higher demand, requiring the <br /> framing to be reevaluated. <br /> 152 <br /> DIBBLE ENGINEERS INC 11029 Market Street, Suite 200, Kirkland WA 98033 1425.828.4200 I dibbleengineers.com <br />