Smoke venting required for elevator shaft?

[BayPointArchitect]

Given:An elevator shaft serving four (4) stories with three (3) floor-ceiling penetrations.Question:Is a smoke vent required at the top of the elevator shaft? Yes/NoCode Reference: 2009 IBC 3004.1 Hoistway Venting Required. Hoistways of elevators and dumbwaiters penetrating more than three stories shall be provided with a means for venting smoke and hot gases to the outer air in case of fire.See attached illustration.Thank you!

View attachment 1807

ElevatorVenting.pdf

ElevatorVenting.pdf

 

[Coug Dad]

What is the occupancy and is the building sprinklered?

 

[BayPointArchitect]

Occupancy: A-4, arean. Sprinkled NFPA 13 with a smoke evac system for building.

 

[BayPointArchitect]

Pinnacle Bank Arena

 

[cda]

sprinkled??

check exception # 1

 

[BayPointArchitect]

Exceptions 1 through 4 do not apply here.

I think the question should be...

do I use the number 3 or 4?

3 floor-ceiling penetrations?

4 stories?

 

[Coug Dad]

Pinnacle Bank Arena

Yea! Go Huskers!

 

[Coug Dad]

Section 3004 typically does not require vents for hoistways in buildings that are sprinklered. Given that, in NE you better check with the elevator group since they have been known to vary.

 

[cda]

?Que?

Exceptions:

1. In occupancies of other than Groups R-1, R-2, I-1, I-2 and similar occupancies with overnight sleeping units, venting of hoistways is not required where the building is equipped throughout with an approved automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.

 

[BayPointArchitect]

Bud said "no" then retired

Gerald now says "yes" during construction

 

[cda]

tell him to read the book

 

[BayPointArchitect]

Thanks CDA. I had to read exception #1 a few more times to catch the fact that any sprinkled hoistway does NOT require a smoke vent provided that it is sprinkled (with the exception of residential and institutional occupancies).

I think that is the answer I was looking for but could not see it until a read the exception again. Otherwise, I simply glossed over it thinking that it applied specificly to residential and institutional occupancies.

Case closed. Smoke vent not required for elevator hoistway.