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Old 07-27-2013, 06:21 PM   #1
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Roof pipe


I need to replace my roof pipe that hooks up to my sink n shower. Where do I buy a new one. Mine is metal I think. Someone told me I could u PVC pipe instead. But I don't want a white pipe sticking out of my roof. I'm guessing mine is around 18 in or so from what I see. Also do they make the square ones that sit close to roof so it looks neater

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Old 07-27-2013, 06:40 PM   #2
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Roof pipe


sounds like you're describing a roof vent?
your material choices from cheaper to most expensive are-
PVC or ABS, galv. sch. 40 steel, cast iron.
All your choices are round pipe and need to extend at least 6" above the roof- more for cold climates so they do not get blocked by snow.

I assume you will make your repairs in the wall below the roof- the proper way.
Also, replace the roof flashing while you're at it

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Old 07-27-2013, 08:50 PM   #3
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Roof pipe


Quote:
Originally Posted by ecocco1469
I need to replace my roof pipe that hooks up to my sink n shower. Where do I buy a new one. Mine is metal I think. Someone told me I could u PVC pipe instead. But I don't want a white pipe sticking out of my roof. I'm guessing mine is around 18 in or so from what I see. Also do they make the square ones that sit close to roof so it looks neater
By square ones, are you talking about the vent cap, the flashing, or the pipe itself? That last one would be humorous...
If its a cap you're asking about, that type of ventilation doesn't require any.
A cantex would be the easiest way to tie back into the existing nipple or tee for a DIY plumber
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Old 07-28-2013, 08:18 AM   #4
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Roof pipe


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. Mine is metal I think. Someone told me I could u PVC pipe instead. But I don't want a white pipe sticking out of my roof.
scuff it up, then prime and paint it whatever color you like. still your cheapest and easiest route. You certainly wouldn't be the only one with a white roof pipe, they are everywhere.
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Old 07-28-2013, 08:51 AM   #5
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Roof pipe


If you use ABS pipe it will be black and no show as much.
No it can not be square and should not be capped.
Air needs to pass over it to create a venturi to suck out the sewer gasses.
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Old 07-28-2013, 09:05 AM   #6
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Roof pipe


geez all you do is paint to match your roof. Most shingle manufacturers have cans of spray paint to match there shingles. Pvc is the way to go.

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