PVC roof sewer vent stack okay?


I am getting a new roof installed, but beforehand I will be replacing the cast iron sewer vent stack that is above the roof line with a new one. I am guessing that just extending the new 3-inch PVC vent stack that will be inside the house up through the roof to the outside to the correct height is okay.
Is that correct?
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wrote:

You have to see in your local codes like PVC (think plumber's union) but it will work fine. I used gray electrical conduit for my stacks since it is U/V resistant. Inspectors were fine with that.
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On Apr 10, 12:32�pm, snipped-for-privacy@aol.com wrote:

if any part of the line your replacing carries water near a living space.
You need to know in advance PVC transmits the noise of flushing great, it will be very noisey.
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On Sat, 10 Apr 2010 10:05:22 -0700 (PDT), " snipped-for-privacy@aol.com"

The vent stack only carries gas.
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Jay,

Yes, that would work fine. Just use the appropriate flashing for the 3" PVC pipe.
I plumbed our house with PVC, but transitioned to a short segment of ABS for coming out of the roof. This was just for appearance, as I felt the black ABS pipe would look better sticking out of the roof than a bright white PVC pipe.
Anthony
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Thanks. I took your suggestion and that's what I did -- PVC on the inside and ABS on the outside since the new roof that is going to be put on today is black.
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