We have a fire barrier, with a fire-resistance rating of 1-hour, that has conduit passing through.
The conduit is not continuous from device to device, only used as a sleeve for the penetration.
How long (continuous) does the conduit need to be past the edge of the fire barrier to maintain a 1-hour rating?
My concern (however minor) is that the inside of the conduit is not firestopped, only the outside penetration. Smoke could pass through the inside of the conduit and effectively circumvent the fire barrier.
Thanks in advance, big fan of the forum.
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11/26/2021 08:19:31 am
11/26/2021 08:40:40 am
Fire stopping is required at open ends to this electrical "sleeve" through the wall.
11/26/2021 11:08:30 am
Check fire caulking manufacturers approved details.
12/1/2021 07:20:12 pm
The firestopping "system" must meet the published criteria typically from the firestopping manufacturer which complies with applicanle UL and ASTM .referenced standards.
12/26/2021 08:35:55 pm
1. The description of the "sleeve" actually appears (by wording) to be a permanent "opening" in the fire barrier - to allow passage of electrical and other items, I suspect. Is there possibly compatible firestopping for the "sleeve" or pipe that creates the "appearance of compliance" for the opening - I think you mentioned a pen seal?
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