Question about conduit type that could be used as sleeve at fire rated walls penetration. code reference please?
You have 2 questions to answer.
What can you use as a sleeve for your installation?
What is the requirement for firestopping when that sleeve is installed in a fire rated assembly?
Example: Up to a certain sized (is it 3/4"?) pvc can have a 3/8" annular space filled with firecaulk and anything over the minimum size needs a collar. You'll have to pack the sleeve with mineral wool or other approved method to prevent the transfer of gasses from one side of the wall to the other.
Sleeves are just pipe going through an assembly. When you penetrate a fire-rated assembly you have to effectively firestop it.
You have 2 questions to answer.
What can you use as a sleeve for your installation?
What is the requirement for firestopping when that sleeve is installed in a fire rated assembly?
Example: Up to a certain sized (is it 3/4"?) pvc can have a 3/8" annular space filled with firecaulk and anything over the minimum size needs a collar. You'll have to pack the sleeve with mineral wool or other approved method to prevent the transfer of gasses from one side of the wall to the other.
Sleeves are just pipe going through an assembly. When you penetrate a fire-rated assembly you have to effectively firestop it.
This is addressed in section 714 of the IBC and also the literature on the fire stop system that you are using.Any code references for that?
Fire Rated Assemblies are cataloged here:
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/fireressrch.html
Its a nightmare to navigate, even when you have the printed books. You have to find the exact wall assembly you have, and then find your type of penetration.
Just as an example, search for W-L-1054. That would not allow PVC conduit.