1707 MERRILL CREEK PKY 2018-01-02 MF Import

. • •��K" � � . PJ!/BL/C N/O/ZKri , July 19, 2000 John F. Berry Cole+ Russell Architects S37 East Pete Rose Way, STE 200 Cincinnati, OH 45202-8080 Subject: Merrill Creek Apartments Proposal Everett, Washington Deaz Mr. Beiry: As a follow-up to our meeting on Monday, hily 17`h, we reviewed past and cuaent pertnitted multi-family buildings �vith similar stair configurations to your proposal. We found that except for one 30-unit complex permitted in 1995, our interpretation/enforcement of the egress system has been consistent. Open breezeway connecting unenclosed stairs has been permitted when the stairs complied as exterior exit stairways(open on two or more sides) per the definition under Section 1006.33.1. As your preliminary drawings sho�v, the stairs are surrounded by the building on three sides. This configura[iun would define the stairs as interior exit stairways, and the exit enclosure provisions of Section 10053.3 would be applicable. Most important of those requirements would be: • 7'he stair enclosures would not permit any communicating openings between them per Section 1005.33.�. A corridor or intermediate room would be required. • Doors to stair enclosures should be minimum 60-minute rated assemblies with a ma�imum temperature rises of 450 degrees above ambient per Section ]005.3.3.5. Note that the provisions do not allow for a sprinkler system to decrease any required hourly rating of a door or other opening. • All openines in the exterior wall below and within 10 feet (horizontally) of unprotected openir.gs within the stair enclosures should be prorected by three-foucth- hour fire-protected assemblies per Section 1003.3.3.10. Egress windows from bedrooms would not be permitted to be within that zone of protection as they must be openable and not sell-closing devices per Section 310.4. OL c_.ITY r�F �yERETT• 32G0 Cedar Sireet • Everett. WA 98201 • (425) 257-8800 • Fax (47_5) 257•8856