chevyx92
Senior Member
- Location
- VA BCH, VA
Is PVC conduit allowed to penetrate a block wall that has a 3 Hour fire rating? I'm thinking not but don't have IBC.
PVC penetrating fire rated wall....
- Thread starter chevyx92
- Start date
- Status
- Location
- Logan, Utah
If you use a rated through penetration system with a 3 hour rating then you can.
Chris
Chris
chevyx92
Senior Member
- Location
- VA BCH, VA
Ok now is that beacause its a 3 hour rating or just becasue its a fire wall? Don't know exactly how IBC words this.
north star
Senior Member
- Location
- inside Area 51
& & & & & &
chevyx92,
Refer to Section 712 in the `06 IBC.....The pvc conduit is
allowed to penetrate your 3 hr rated. assembly when the
annular space around the pvc conduit completely sealed
with an approved material.......Most of the electricians
in these parts use an approved type of intumescent fire
caulking.
Recommend that you discuss this penetration with the
AHJ first!
& & & & & &
chevyx92,
Refer to Section 712 in the `06 IBC.....The pvc conduit is
allowed to penetrate your 3 hr rated. assembly when the
annular space around the pvc conduit completely sealed
with an approved material.......Most of the electricians
in these parts use an approved type of intumescent fire
caulking.
Recommend that you discuss this penetration with the
AHJ first!
& & & & & &
cadpoint
Senior Member
- Location
- Durham, NC
If you want to look at some UL approved stuff, Here , ((Touch home - use below terms))
This is based on UL Online Certifications Directory , I used this and just used the words; fire penetration (at the bottom)
UL has a firewall that stops direct links, I keep forgeting this!
This is based on UL Online Certifications Directory , I used this and just used the words; fire penetration (at the bottom)
UL has a firewall that stops direct links, I keep forgeting this!
Sure, as long as the penetration has the required rating.
That means, you'll have to use one of those collars that expand as the PVC melts so the fire rating is still maintained.
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
cadpoint
Senior Member
- Location
- Durham, NC
Virginia Building Codes in a search engine gave me this USBC; based on this search va building codes
I'll assume VA amended ICC that's at the bottom of the page!
I'll assume VA amended ICC that's at the bottom of the page!
chevyx92
Senior Member
- Location
- VA BCH, VA
Ok do I need to use a collar on both sides of the wall or just one side?
Contact the manufacturer you are planning on using such as Hilti or 3M and tell them what you are planning, they will provide the back up for their particular assembly. With out the back up to the products application you will have nothing. You can also find the information in the UL Orange books but it is easier to get it from the manufacturer.
Roger
I agree, the manufacturer is the best source for this information. I recall a new motel project that I was inspecting. Motels have lots of rated walls and ceilings. This project had lots of penetrations through rated construction, not only electrical but plumbing and HVAC as well. The contractor was completely overwhelmed trying to come up with fire stop assemblies for all of the different types of penetrations. I suggested to the general contractor that he contact a fire stop manufacturer. I don't remember now which manufacturer it was, but the manufacturer actually sent a representative who spent a day or two on site helping with selection of fire stop assemblies and providing documentation. It made life a lot simpler for the trades, and it made my job as inspector easier as well.
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