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stove hood vents

we had a serious fire and it likely started in the vent hose leading away from the vent hood above the stove. The hose was made of plastic. Is this code? Is it illegal? Has anyone heard of plastic being used? I would think the exposing temperatures would prohibit its use, especially during a stove fire. Am looking for any info or similar experience with plastic vent hose in stove hoods. If anyone has a video or burn test results of burn tests or actual fires, that would be great
thanks
stay safe brothers ansd sisters
aa

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Comment by Anthony Avillo on September 18, 2009 at 10:21am: thanks
be safe

Comment by Jason Hoevelmann on September 18, 2009 at 10:04am: If there are no building codes then it doesn't really matter; they can do what they want. Otherwise, refer to the 2006 International Mechanical Code. If you need anything else, let me know.

Comment by Anthony Avillo on September 18, 2009 at 9:01am: It was aresidential
not sure about the codes
checking on this for a capt who was injured at the fire

Comment by Jason Hoevelmann on September 15, 2009 at 5:09pm: The 2006 IMC states that domestic hoods should have stainless, aluminum or galvanized to duct outside, but there is an exception for those systems with downdraft systems, they can vent out with schedule 40 PVC if certain conditions exist. (those should be under a concrete slab, etc.) Commercial must have steal or other before mentioned material. Now, depending on when the building was built and under what year of code, if any, could dictate what material was used. But, now is a good time to get them compliant. Hope this helps.

Comment by Jason Hoevelmann on September 15, 2009 at 5:04pm: The first question is was it a commercial stove and hood or residential? The second question is does your jurisdiction have codes and what kind?

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