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Old 04-11-2012, 07:29 PM   #1
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Funky vent pipe


Our vent pipe exits through the roof as it should. But where it passes through the attic floor there is a 6inch round opening on the side. some one stuffed rags in it long before we bought the house. over time the rags have fallen out. Should i seal it up? what is this hole?

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Old 04-11-2012, 07:33 PM   #2
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Really need pictures showing what you are talking about. As for sealing, yes, due to it causes Chimney effect, along with it is also a easy way for fire to spread up into the attic, if one should happen.

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Old 04-11-2012, 07:53 PM   #3
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Its not the furnace vent. Its the plumbing vent..old cast iron.
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Old 04-11-2012, 08:14 PM   #4
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Funky vent pipe


I think what Greg is saying is that by having that hole open, it is pulling in fresh air through the attic vents, and for a fire to really get rolling in your attic, you need lots of fresh air. Which you now have because those rags are gone. restuff the hole, at a bare minimum, you could be exposing the attic area to dangerous methane style gasses from your septic system.
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Old 04-11-2012, 08:33 PM   #5
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Thanks for the clarification. Iget what hes saying. Just cant figure out why theres a hole their in the first place. Ill try to get a photo. Thanks guys.
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Old 04-11-2012, 09:06 PM   #6
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Quote:
Originally Posted by LisaH View Post
Thanks for the clarification. Iget what hes saying. Just cant figure out why theres a hole their in the first place. Ill try to get a photo. Thanks guys.
I bet someone beat a hole in it to vent a kitchen hood or bathroom fan at some point in time.
I wonder where the pieces went

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