flashing for vent roof penetrations
I'm about to finish my DWV install by taking the vents through the roof. I have purchased some Oatey plastic roof jacks w/ a rubber/neoprene boot that goes around the pipe.
Are there any secrets/tricks to:
1. cutting the hole through the roof (I'm assuming I want the hole as small as possible w/minimum impact to the shingles?
2. attaching the roof jack?
3. getting the roof jack layered under the shingles (do I just stick the top under the shingle above the vent and lay the sides and bottom over the shingles?)
4. sealing the roof jack at sides,bottom, top, fastener penetrations?
5. sealing the roof jack around the pipe?
Just want to make sure I understand
Unfortunately I'm not doing the roof right now, so have to deal with "after the fact" on that.
So if I understand correctly:
I don't need to use any roof sealant (unless it will help me sleep better :) ) where the boot meets the shingles. I'm also assuming any exposed nail heads need some sealant.
I only need a couple of nails along the top of the boot (preferrably to be covered by the shingle above if possible without damaging the existing shingle).
Nice trick on oversizing the hole a bit to get the pipe plumb! Thanks.