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• Mr. Audie Wallace <br /> McKinstry Co., LLC <br /> Plan Check Number: X1907-001, First Building Review <br /> July 11, 2019 <br /> Architectural <br /> 1. Sheet M4.24 shows a ceiling diffuser penetrating the corridor ceiling at Grid 3.9/2.5. The <br /> corridor walls are specified as smoke partitions per Sheet LS2.20 of the construction drawings <br /> under Permit No. B1904-036. The ceiling appears to provide continuity for the smoke partition. <br /> The duct opening shall be provided with a smoke damper. It is noted that the duct may have a <br /> damper located upstream in the trunk line, but this is not sufficient to prevent the passage of <br /> smoke between patient rooms and corridor at the identified location. See IBC Sections 710.8 <br /> and 717.3.2.2. [Response worn Stantec 8/5/2019: A new smoke damper will be installed in the <br /> • auct between the patient stations and the corridor (at Gridline "K").] <br /> 2. Sheet M4.24 shows an existing ceiling diffuser penetrating the corridor ceiling at Grid J.8/3.2 <br /> that does not include a smoke damper. The corridor walls are specified as smoke partitions per <br /> Sheet LS2.20 of the construction drawings under Permit No. B1904-036. The ceiling appears to <br /> provide continuity for the smoke partition. The duct opening should be provided with a smoke <br /> damper. Other existing duct openings may exist that similarly should be provided with smoke <br /> dampers. It is noted that the ducts may have a dampers located upstream in the trunk lines, <br /> but these are not sufficient to prevent the passage of smoke between patient rooms and <br /> corridors. See IBC Sections 710.8 and 717.3.2.2. [Response from Stantec 8/5/2019: A r{ <br /> smoke damper will be installed in the 12" round duct between the patient stations awT <br /> corridor (at aridli:- . " <br /> 3. Sheet M4.24 shows an 8"round duct penetrating the east wall for the Clean/Linen Room at Grid <br /> 3.3/3.5. The wall is specified as 1-hour fire barrier per Sheet LS2.20 of the construction <br /> drawings under Permit No. B1904-036. Per the rate wall schedule on Sheet LS2.20, the ducts <br /> shall include fire dampers at the wall penetration points. See IBC Section 717.5.2. .sponse <br /> Stantec 8/5/2019: Fire damper will be installed] <br /> 4. Sheet M4.25 shows four 22x20 ducts penetrating a wall at Grids 3.1/7.7 and 3.1/8.8. The wall <br /> is specified as 1-hour fire barrier per Sheet LS2.20 of the construction drawings under Permit <br /> No. B1904-036. Per the rate wall schedule on Sheet LS2.20, the ducts shall include fire <br /> dampers at the wall penetration points. See IBC Section 717.5.2. (Response from star:: <br /> 8/5/2019: The fire dampers are not required as fire/smoke dampers are installed at the top or <br /> the shalt on level 4. [his matches the installation at all existing ORs.] I ndressedbyMeKS <br /> Structural tructuralEngineer <br /> 1. The project includes four air terminal units per Sheet M0.02. It is presumed that the units <br /> weight approximately 50 lbs each and will require individual gravity suspension and seismic <br /> bracing. See IBC Sections 107.2.1, 1604.1, and 1613.1, and ASCE 7-10 Section 14.1.4 Item 6c. <br /> The following comment shall be addressed: <br /> a. Details for the support of the units shall be included in the construction drawings. <br /> b. Calculations for the support design shall be submitted for review. The seismic bracing shall <br /> comply with the requirements of IBC Section 13.6. <br /> n 3200 Cedar Street ® 425.257.8810 O everetteps@everettwa.gov <br /> \'-1 Everett,WA 98201 425.257.8857 fax everettwa.gov/permits <br /> Page 2 of/5 <br />