Cast to PVC above hard ceiling (not plenum space) high-rise and fire-penetration

[steveray]

Jeff....is there already a firestop collar cast in place? Doesn't look like a normal core hole.....?

 

[jar546]

That is a piece of plastic used when pouring the slab so they don't have to core drill.

 

[Sifu]

Theoretically, there was a firestop submittal for the original installation, which would have had a penetration system for the original penetrant. A new firestop assembly must now be submitted. As you point out the inspection of the system may be difficult now since they installed the pan. Anytime I get plans for one of these types of remodels that will involve disturbing the rated assemblies I ask for a system prior to permit issuance. Of course, then I have to explain what all that means.

 

[mtlogcabin]

This product should do it

https://www.3m.com/3M/en_US/p/d/b40065436/

 

[redeyedfly]

That is a piece of plastic used when pouring the slab so they don't have to core drill.

If that's how they formed their penetrations they must have hundreds of these to post-install. The Hilti sleeves are cheap, what were they thinking?

 

[north star]

@ = @ = @

Rembo, ...the angle of your photo looks like
water will be draining uphill downstream of
the P-Trap.

@ = @ = @

 

[ADAguy]

Love fire penetration discussions