The lower half of the flange sits on top of the shingles.
How to install a bathroom vent through roof.
The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof.
From inside the attic drive a nail through the roof directly above the bathroom vent fan.
Slide a flat pry bar underneath the.
Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it.
Table of contents hide.
Choosing a whole house fan.
Nail the lower corners with roofing nails and tar the heads.
Slide the vent under the shingles so they cover the top half of the vent flange.
So if you like then climb a couple ladders with me an.
Position the vent pipe up to the bottom of the roof.
Go into your attic.
If you have any questions or comments at all please comme.
With the pipe in a vertical position trace around the pipe using a pencil.
This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof.
Center the nail between.
From the roof find the nail and use the utility knife to cut roof shingles from around the nail.
How to vent a bath fan through the roof 1.
I really hate cutting holes in roofs but it was this or run 15 feet of vent hose through a gable end.