1700 13TH ST 9TH FLOOR 2022-01-20

925 Fourth Avenue Memo Suite 2400 Seattle, WA 98104 ZGFr 206 623 9414 7868 Date March 21 2019 F 206 623 7868 � Project No. ` S24009 ZIMMER GUNSUL FRASCA ARCHITECTS LLP Project Name PRMCE — D Wing Level 9 Inpatient Unit Buildout Page No. 2 of 6 Response: It is our understanding that the definition of "sleeping unit" and application of IBC Section 1207.2 are intended to apply to residential facilities. This understanding is reinforced by the revision to the definition of sleeping unit that was made to the 2018 edition of the IBC. It states: "Sleeping Unit. • A single unitproviding rooms or spaces for one or more persons that includes permanent provisions for sleeping and can include provisions for living, eating, and either sanitation or kitchen facilities but not both. Such rooms and spaces that are also part of a dwelling unit are not sleeping units. " We do not think that an inpatient room falls within that definition as IBC Section 407 refers to inpatient rooms as "sleeping rooms". In addition, we have reviewed this comment with the Washington State Department of Health, Construction Review Services to determine whether this section of the IBC has been applied to inpatient rooms in other hospital facilities in the state. Their response was no. The current state code for the design of hospitals, the 2014 Edition of the "Guidelines for the Design and Construction of Hospitals and Outpatient Facilities", includes requirements for the STC ratings of walls for different types of spaces and requires an STC rating of 45 for the walls between patient rooms and an STC rating of 35 for the wall between a patient room and a patient room access corridor. We have designed the patient room partitions to comply with those requirements. 7. It should be verified that the existing walls and doors of electrical rooms B90040 & B9104 that are part of the smoke barrier are appropriately rated. Section 709 Response: Wall tags and notes have been added to verify existing walls and doors meet the designated ratings. 8. The plans should state that fire-resistant penetrationsand joints will be special inspected in accordance with Section 1705.17. Response: A special inspections section has been added to sheet A0.10, please see revised sheet. 9. The fire safety and response plan for the 9th floor as specified in IFC Section 403.8 should be forwarded to the fire marshal for approval. Response: Noted. Drawings will be forwarded to the fire marshal for approval. Egress The Family Lounge is shown with an occupant load greater than 50. Please note, that we would normally assign an occupant load factor (OLF) of 15 to such a space which would not result in an occupant load greater than 50. If the OLF of 7 is truly representative of the use of the space the following comments apply: a. The occupancy should be revised to Assembly per Section 303.1. b. All doors leading from the room should be shown with panic hardware on the door schedule per Section 1010.1.10 (also note that door A9030 is not on the door schedule). c. The maximum occupant load should be posted in the room. Response: The Family Conference room will contain fixed seating (small meeting table and chairs, couches and side chairs); occupant load has been revised to be 15 sf/person. 2. Family Conference room B9073A should also be provided with a side -hinged door. Section 1010.1.2 Response: Conference room door B9073A has been revised to include an additional swing door for egress. Door schedule and plans have been revised, please see A2.02B and A8.41. JJU