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Vent Stack Near Window


Mike Lamb
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Does anyone see why that could be a problem?

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Methane, shitty smell, when the window is open it may draw air in, it's not supposed to be there, if you sleep with the window open you can hear flushing, if you sleep with the window open and a door closed you could wake up with a headache / or not wake up.

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Over extending a stack vent can create a frost closure condition and affect appliance performance.

That would be a concern with Chicago winters. I don't think I've ever seen a stack 4 or 5' above the roof, but besides that, correcting this won't be easy.

Not necessarily, if the attic is accessible, I'd relocate the vent down wind if there's such a thing and then connect it to the sewer stack.

Remove the old flashing and patch the hole...voila!

In the first place, that vent doesn't look right to me.

Did you take your mirror and look inside and around the flashing?

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One or the other or both should apply here

UPC

906.1 Each vent pipe or stack shall extend through

its flashing and shall terminate vertically not less

than six (6) inches (152 mm) above the roof nor less

than one (1) foot (305 mm) from any vertical surface.

or

906.2 Each vent shall terminate not less than ten

(10) feet (3048 mm) from, or at least three (3) feet (914

mm) above, any openable window, door, opening,

air intake, or vent shaft, nor less than three (3) feet

(914 mm) in every direction from any lot line-alley

and street excepted.

Bill, some areas do not allow for AAV's to be used. Here in St. Louis city they do not allow them to be used but other municipalities do.

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Over extending a stack vent can create a frost closure condition and affect appliance performance.

That would be a concern with Chicago winters. I don't think I've ever seen a stack 4 or 5' above the roof, but besides that, correcting this won't be easy.

So raise it up and transition to a larger pipe.

- Jim Katen, Oregon

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