Background: Both of the suites are non-sleeping, and SF for Suite S1 = 8,788 SF, and S2 = 7,556. Occupancy at 240 sf/ per occupant, so Suite S1 would have 37 occupants, and suite S2 would have 32 occupants.
First off, is it acceptable to have an exit stair within one suite as one means of egress and the second means of egress being through another suite?
Option A – Create a Corridor per Matts suggestion
Create a small new ‘Corridor’ in front of the exit stair to satisfy 188.8.131.52.3.1 (A) and 184.108.40.206.3.2 (B) for one exit, and egress through the adjacent suite for the second exit per.
- Is a ‘Corridor’ in fact required, or is direct access to the stair acceptable if the only other egress from the suite is through an adjacent suite?
- Is there a SF requirement for the corridor based on occupants?
- If so, is that the same as an area of refuge, which would be 6 SF per occupant?
- And would that require enough space for both Suites, S1 + S2 for a total of 70 Occupants, or only for suite S2 with 32 Occupants?
Option B – Horizontal Exit
Upgrade the existing separation wall between the two suites to be 2 hour fire rated. Replace doors with 90 min doors and narrow vision lites. Requires that both stairs on either side of the horizontal exit discharge directly to the existing. One of the stairs does, the other set of stairs by the elevator would need a short corridor to be rated 2 hours on the ground floor below.
- 220.127.116.11.3.1 (a) allows a horizontal exit, but 18.104.22.168.3.2 (B)* seems to contradict that and only mentions a corridor. The items below that for one means of egress A.22.214.171.124.3.2(B) also only indicated a corridor and not a horizontal exit. So the question is, are we allowed to have a horizontal exit as one means of egress through the other suite, and the second means of egress is direct access to a stair?