Corridors in I-2

[BrittM]

Section 407.2 requires that corridors in an I-2 occupancy are continuous to THE exits. This is more specific than general corridors, as there are allowances in the code for corridors to be continuous to AN exit, and maybe have an intervening room or other condition that doesn't require the corridor to be continuous all the way to every exit.


My question is, when / if a corridor in an I-2 leads to an elevator lobby and the occupants must travel through the elevator lobby to get to the exit, what do you do about corridor continuity and the hoist way openings. Do the hoist way openings need to be protected as the corridor in an I-2? The corridors in an I-2 also have different requirements for doors than standard corridors, so how would you apply this to the hoist way openings.


Secondary question. Is the answer different for FSAE lobbies, which limit any protection on the hoist way openings. Can occupants travel through these lobbies as an exit path?

 

[cda]

Welcome

 

[cda]

Not into elevators

Did you look at 3006 hoist-way protection

 

[BrittM]

Yes, 3006 addresses the hoist way protection and the need for the lobbies, which are in place in this project. The question is about the corridor continuity requirement in the I-2 being the more specific provision.

 

[cda]

Don’t think I have seen the actual hoistway openings protected.

So the rest of the elevator area, minus hoistway, will be rated.


There are far more smarter people on the forum, give it a day or two for replies.

 

[cda]

Plus it has been awhile, the elevator doors themselves carry some type of rating.

 

[cda]

Ok try this, is your answer Table 1020.1 and 407.3???

 

[BrittM]

The question isn't about the rating, because the corridors are not required to be fire resistance rated. It's about the corridor continuity and the smoke provisions for the corridor construction, which is different in an I-2 than other occupancy's. The main crux of the question is does the additional smoke protection of the corridor need to continue through the elevator lobby and be applied to the hoist way openings.

 

[cda]

The question isn't about the rating, because the corridors are not required to be fire resistance rated. It's about the corridor continuity and the smoke provisions for the corridor construction, which is different in an I-2 than other occupancy's. The main crux of the question is does the additional smoke protection of the corridor need to continue through the elevator lobby and be applied to the hoist way openings.

I would say yes the elevator lobby has to maintain the smoke protection.

Ans I think the elevator doors, already meet it??

 

[cda]

Ok elevator hoist-way check 3002.1.1 and 3006.2