I am looking to replace the round rubber part at the bottom of this
bathroom vent pipe (see link at bottom) where it enters the roof. You can
partly see on the other side that the rubber is crumbling and allowing rain
to enter the attic. What is this part called (boot, gasket?) and do the big
box stores carry them? Can I just seal it with some kind of rubber sealant?
Vent roof flashing, roof vent stack flashing. Don't do a bandaid with
sealant - that won't work for long, and you can't just replace the
rubber part. There are products that slip over the vent, such as:
but they have limitations as well.
The big box stores will carry vent flashing, but I've never noticed a
repair product. Try a local roofing supplier - the odds are much
better they'll have something that'll work for you.
Take the picture to a local roofing company that is recommended by
someone you trust and see what they recommend. It makes a difference
if your area is subject to below freezing temperatures or not. You
can always try that black rubbery stuff they are advertising on TV
that claims to repair anything, they supposedly covered a screen door
in the bottom of a rowboat without any leaks, but that is only for a
day, you probably would like the fix to last five years or more.
They're called vent pipe boots. Go to google and type "vent pipe
boot". Lots of them will appear.
I'm not suggesting Amazon, but this site has photos.
(Amazon.com product link shortened)
I do recall seeing them at a large Ace Hardware store. Several people
said to go to a roofing company, when in fact, I'd go to a plumbing
supply store. Some of the big box stores should have them too. In
They are sometimes called "Vent Pipe Collars" too.
Also look here:
By the way, if you need a temporary patch, use silicone, not roofing
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