How To Install A Roof Vent For Bathroom Fan

Nail the lower corners with roofing nails and tar the heads.

How to install a roof vent for bathroom fan.

How to install a bathroom fan vent in the soffit. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. To install a roof vent start by choosing a good location from inside the attic and then pound a nail all the way through the roof at that location so you can find the spot from outside. The lower half of the flange sits on top of the shingles.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. From inside the attic drive a nail through the roof directly above the bathroom vent fan. Center the nail between two rafters.

Apply a bead of asphalt roof cement on the bottom of the vent. Remove the tape from the fan first. Climb into the attic and clear away any insulation from around the hole. For optimum performance locate it between the shower and the toilet.

Draw a mark on the bathroom ceiling where you d like to install the vent fan. Choosing a whole house fan. Next we must slip a worm drive metal clamp on the inside part of duct liner. This way we can make sure both are positioned properly.

This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof. Check the damper and the screen in prior to installation.