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City of Everett Permit. ices 11108 Evergreen Way (M2 -.080) <br /> CORRECTION LETTER 01.19-2022 <br /> 1. The submitted drawings consist of excerpted architectural sheets from Building Permit No. B2107-001 <br /> and the manufacturer's generic shop drawings for the hood system. Project specific mechanical drawings <br /> showing the proposed location of the hood system and other information as required(e.g.,roof framing, <br /> installation details,etc.)should be submitted for review. See IBC Section 107.2.1. <br /> SHEET#1 <br /> The anticipated location of the hood system appears to be against an interior wall of unknown <br /> construction. The hood should be provided with a minimum 18-inch clearance to combustible <br /> materials. The note in the"Section Plan Detail"on Sheet 2-of-2 regarding the required clearance is not <br /> adequate. Alternative,reduced clearances,including the sides and top,should be substantiated with <br /> details per IMC Section 308.4.2. See IMC Section 507.2.6. <br /> SHEET#1 <br /> 2. The proposed hood weighs more than 20 lb and is suspended from the framing above. Details for the <br /> connection of the hood to the structure are required;the details provided in the manufacturer's drawings <br /> are not adequate. The hood shall be provided with lateral bracing per ASCE 7-10 Section <br /> 13.6. Alternatively,the hood may be braced by a direct connection to the adjacent wall provided that <br /> the minimum 18-inch clearance is maintained. See IBC Sections 107.2.1, 1604.1 and 1613.1. <br /> SHEET#1 <br /> 3. The duct is provided with fire wrap at the interior of the building. The wrap terminates at the exterior <br /> wall. The wrap should continue a minimum of 18 inches outside the exterior wall if the wall construction <br /> includes combustible materials(e.g.,siding,exterior wall sheathing,etc.). The 18-inch clearance shall be <br /> measured perpendicular to the wall surface. Clearances may be reduced per IMC Table 308.4.2. See IMC <br /> Section 506.3.6. <br /> SHEET#1 <br /> 4. Up-blast fans serving Type I hoods shall be installed with a hinge,restraint,and flexible electrical cable to <br /> permit inspection and cleaning. These do not appear to be specified. The drawing should be <br /> revised. See IMC 506.5.3. <br /> SHEET#1 <br /> 6. The project appears to include the installation of a MAU on the roof. The drawings should include the <br /> weight of the unit. Documentation should be submitted for review demonstrating that the new unit <br /> does not increase the previously permitted loading condition on the roof by more than 5%. The weight of <br /> all accessory components(e.g.,mounting curbs,operating weight with fluid,etc.)should be included. If <br /> the load increase exceeds 5%,a structural analysis of the supporting framing is required. See 2018 IEBC <br /> Section 706.2. <br /> ATTACHED TECHNICAL SPECIFICATIONS RECE[IV EI <br /> DETAIILS EIEET.#.1 <br /> JAN 2 1 2022 <br /> CITY OF EVERETT <br /> Permit Services <br /> � 5 <br />