How To Install A Bathroom Vent Through Roof

This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof.

How to install a bathroom vent through roof.

I really hate cutting holes in roofs but it was this or run 15 feet of vent hose through a gable end. Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it. Table of contents hide. From inside the attic drive a nail through the roof directly above the bathroom vent fan.

Slide a flat pry bar underneath the. The lower half of the flange sits on top of the shingles. Position the vent pipe up to the bottom of the roof. With the pipe in a vertical position trace around the pipe using a pencil.

Center the nail between. Then drill a hole on the roof top. Choosing a whole house fan. How to vent a bath fan through the roof 1.

Nail the lower corners with roofing nails and tar the heads. Apply a bead of asphalt roof cement on the bottom of the vent. Go into your attic. To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom.

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 the roof find the nail and use the utility knife to cut roof shingles from around the nail.