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.a .._a. <br />linteNl*aerYnlil <br />w ■ R MS <br />11035 NE 122'° WAY <br />SUITE 140 <br />KIRKLAND, WA 980344910 <br />0 425023.2244 <br />0 425021.1715 <br />O 0K9a4.9A4o <br />O r.r.mn4.= <br />14 August 1998 u� / ►�� <br />(C!! AUG <br />Tony Lee <br />CITY OF <br />City of Everett Pe►mlt TT <br />3200 Cedar Street <br />Everett WA 98201 <br />RE: The Everett Clinic Imaging Center <br />Dear Tony Lee, <br />The two sets of drawings submitted allow the corrections and/or <br />modifications that have been requested. Below are the responses to the <br />comments of your letter dated 22 July 1998. <br />1. Meeting room l is an A-3 Occupancy and requires two exits based on occupant lad. <br />Both exits are shown accessed by the existing corridor. The corridor is abo then <br />required to have two exits. Currently, the corridor is shown to atop at door 3001. <br />The rated corridor should to connect both exit stairs from the floor per Section <br />1004.2.2. <br />Response: The plans have been changed to snake door 3001 a horizontal <br />exit. See sheets At.I and A2.3. <br />2. If the intent is that a horizontal exit be located at the doors separating the meeting <br />room lobby and lobby room 300 then the following requirements per Section <br />1005.3.5 should be met. <br />a) The horizontal exit shall completely divide the floor into two exit -access areas. <br />b) The wall shall be constructed to be equivalent to two-hour occupancy separation: <br />i) Walls shall be continuous from exterior wall to exterior wall and shall <br />extend from the floor to the underside of the lot or roof directly above. <br />ii) Wall construction shall be a minimum of two-hour fire -resistance. <br />iii) Structure supporting the walls require equivalent fire resistance. <br />iv) Openings rerquire a 90-minute rating. <br />v) Openings require a maximum temperature rise of 450 degrees. <br />C) No more than 50% of the exits are permitted to be horizontal exits. <br />Response: The intent of the plan now is to provide a horizontal exit. The <br />rated wall extends from the east exterior wall to the west exterior wall. <br />The wall will be constructed per UL design U453. The doors in the wall <br />be changed to 90-minute rating. Only one of the two exits is a horizontal <br />exit. The existing structure is Type II, FR. <br />ec:file <br />Page 1 <br />