Jennies Garage: Hi, this was just a video outlining the installation of the flashing. I
installed the vent pipe and cap later (before the rain).
edwinclass56: Where are the two nails removed from the top? They were not replaced. Is
the "vent cap" missing? Water will get into the house otherwise. Finished
Dave Quick: Good video...Instead of a chisel, get a wonder bar..so much easier...
Jennies Garage: Good tip, that would definitely be helpful!
Awelton85: You actually did do it correctly. You can go ahead and nail the bottom
where it is exposed and put a little silicone over the nail heads.
Depending on where you live this will stop the bottom of the flashing from
blowing up and letting snow get under the flashing. You can also stick the
shingles you disturbed back down with some roof cement, as they won't
reseal after they have been pried loose.
michael amaya: The hole you cut is to small. You should have 1 inch clearance around your
pipe. Also you should use dual wall vent pipe, b-vent. A cap and rain
collar should also go on. Then nail down and cover with roof tar.
Jennies Garage: Good tip, thanks!
Jennies Garage: That's a good idea, and cheap insurance!
Jennies Garage: I use double wall just up through the attic and out the top. Below the
ceiling single wall is fine. Double wall requires minimum 1" clearance to
combustibles, and single wall calls for 6"
Jennies Garage: @Awelton85 Thanks for the tips, I'll get some Henrys and glue down the
shingles. We just had a really rainy week, and no leaks!
Carl Smith: looks good ,a little mastic under the lose taps keep the wind at bay ,
better then some roofer would do, and save you money.
MrCinimod93 .: its the only way we make them not leak plus it glues down the singles so
the wind dont flip them back and snap them off in the cold
Jennies Garage: @Mrbraveharrt Thanks for the kind words. Yes, when I installed the chimney
I used double wall pipe. I don't think it was stainless, though. I think it
Jennies Garage: Thanks for the kind words, good idea about gluing the tabs down.
Hearthman1159: The entire vent should be B-vent since it is located in an unconditioned
space. I would have located the roof jack further down from the ridge and
use listed elbows with supports. Sorry but work like this is job security
for me. This is NOT DIY work as proven here.
MrCinimod93 .: around here we put tar under the singles that are on top of the flashing if
we don't the wind blows the rain up under and into the house
edwinclass56: Thank you!
Jason D Jean: Does the whole pipe need to be dual wall, or just the section actually
going through the roof?
Mrbraveharrt: Not sure but where the pipe goes through the roof should be class A
stainless steel pipe? That looked like standard single wall pipe. Nice job
on the flashing though.
6sxpressdotcom: all you need is a plumb line
Richard Recupero: Awesome video I'm about to go climb up on a roof and do that myself right
now charging a customer 1500 dollars
Jennies Garage: When I got the house, that's how it was; fully operational, but no vent! I
heat with wood, so I don't use the furnace, but figured I should go ahead
and install the chimney. Carbon monoxide poisoning anyone?
fingers967: id like to know how the tech that hooked that up with the central air and
all missed the fact there was no venting LOL is it a new roof ..WOW looks
like a garage .. sure hope it wasnt venting in there the whole time till
How To Install A Roof Vent Flashing For a Furnace Chimney4
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