RNC in block???

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Shockedby277v

Shockedby277v

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Michigan
We have been running PVC up block walls for a few years now and stubbing out w/ EMT. Today my boss and I had a conversation whether or not this is against code or building code, due to the harmful vapors produced when a fire occurs. 352.10 (A) *2002 code* tells me it's allowed inside of walls.
 
What would be the difference - in the event of fire - between electrician's gray RNC and plumber's white DWV?
 
The PVC we are installing is in commercial applications. Schools for the most part. Being with-in the block wall would fire-rate it, in a sense, from my standpoint. PVC makes for a cheaper and efficient install. Does anyone else run PVC this way?? Thnx for your comments.
 
The PVC could be run within the wall or on the wall surface as long as it's not run in a duct, plenum or other air handling spaces.
 
Shockedby277v,


Make sure that metal raceways are not speccd. I pondered the same question. I am by no means an expert, as Infinity has stated, it seems ok.

Justin J. Walecka
 
JJWalecka said:
Make sure that metal raceways are not speccd.Justin J. Walecka
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ex. Palm Beach school system seems to spec EMT stub ups in the block (and a slew of other seemingly wasteful stuff :roll: ). They take PVC under the slab though.
 
In my area,pvc can run in block walls or slabs, but never exposed because of the toxic gas omitted in the air when burned. This is inforced by the Fire Marshall. :eek:
 
In my area,pvc can run in block walls or slabs, but never exposed because of the toxic gas omitted in the air when burned. This is inforced by the Fire Marshall.
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Do they also prohibit carpet and furniture? There is far more toxic smoke produced by the furnishings than by the building materials.
Don
 
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