Slab openings

[Grouch1980]

Hi all,
We are working on a project where we have a dedicated electric, fire alarm and low voltage closet on each floor of a new hotel. The closets have slab openings in the back for the routing of risers. Any panels and equipment will be installed in front of those risers. If the closets have a 2 hour rating can we have the conduits passing through the slab without closing or rating the slab openings?

Thanks!

 

[jusme123]

........

 

[hbiss]

Really not an NEC question but a building code question. My opinion is that regardless of the fire rating of the sheetrock, the chase penetrations should be fire stopped at each floor.

-Hal

 

[infinity]

I've never seen an open riser shaft run up through electrical/data closets. We firestop all of our vertical penetrations with pourable firestop. On large projects we hire a professional firestop contractor to close all of the penetrations because the are generally cheaper and frankly do a much better job.

 

[gadfly56]

I've never seen an open riser shaft run up through electrical/data closets. We firestop all of our vertical penetrations with pourable firestop. On large projects we hire a professional firestop contractor to close all of the penetrations because the are generally cheaper and frankly do a much better job.

^^^^What he said.

 

[Grouch1980]

Thanks guys for the feedback. Looks like we'll be closing / fire rating all those penetrations.