8417 EVERGREEN WAY PANDA EXPRESS 2022-05-23

LMR Consulting Mechanical Engineers Tel: 1-510-733-2330 1165 A Street, Hayward,CA 94541 Fax: 1-510-733-0332 September 18, 2019 Ref. No. 1891-4. age- City of Everett Attn: MR. Drew Martin Project: Panda Express 3200 Cedar Street,2nd Floor Everett, WA 98201 Mr.Martin, The following are the City of Everett plan check comments for the review,with the associated responses. 1. The construction drawings do not provide a clear and consistent separation between the hood and the wall framing. Section 18/M-500 specifies a 3-inch "internal standoff'while Detail 14/M-500 indicates that the hood is directly connected to the wall; Detail 14 does not appear to indicate an internal construction that would provide an effective separation. Note that the construction drawings for the building under Permit No. B1805-014 indicate the wall framing is combustible construction consisting of wood studs. The hood shall be provided with a minimum 18-inch clearance to combustible materials unless reduced clearance construction is provided per IMC Table 308.4.2;the reduced clearance shall not be less than 6 inches for an unprotected clearance of 18 inches. The reduced clearance construction shall extend at least 18 inches in all directions from the hood surfaces. The design shall be revised. See IMC Section 507.2.6. Response: Added 3"min.internal stand off to detail 14/M-500. The building was built with non-combustible metal stud walls. Therefore no clearance required between the hood and the wall. Please refer to the revised details 14/M-500 and 18/M-500. 2. Up-blast fans serving Type I hoods shall be installed with a restraint to allow inspection and cleaning. Section 5/M-500 specifies a"removable bolted restraint cable"that appears to be a latch to secure the fan in its closed position. The detail shall specify a restraint cable to limit the swing of the fan when opened. The drawing shall be revised. See IMC 506.5.3. Response: The detail 5/M-500 has been revised. 3. Details 13/M-500 and 14/M-500 indicate that the hood will be supported by a combination of connections to the adjacent wall and roof framing, respectively. See IBC Sections 107.2.1, 1603.1, 1604.1,1604.4, and 1613.1. The following comments shall be addressed: a. Detail 14/M-500 shows a direct connection to the wall framing providing lateral and partial vertical support. However,the wall contains combustible construction, and therefore the connection may not be permitted. Revised connections may be required. Seismic bracing complying with ASCE 7- 10 Section 13.6 shall be provided as needed. Response: The detail 14/M-500 has been revised. b. The hood is partially suspended from the framing above using threaded rods to the roof trusses. The trusses are spaced at 32-inches on-center per the construction drawing under Permit No. B1805-010 and consequently may not align with the rod locations. Additional cross-framing, such as unistrut bars, appears to be required to transfer the rod loads to the trusses. Cross-framing shall be connected to the framing above on each side of a rod location (i.e., cross-framing shall not