How To Install Roof Vent For Bathroom Fan

Draw a mark on the bathroom ceiling where you d like to install the vent fan.

How to install roof vent for bathroom fan. Center the nail between two rafters. Another method a little bit better is if you have a gable style roof and a gable vent on one end of the house you can attach this to the back of a gable vent. Idea 5 connecting the duct to the bathroom fan remove the tape from the fan first. For optimum performance locate it between the shower and the toilet.

Nail the lower corners with roofing nails and tar the heads. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. Table of contents hide. Several different ways you can move that hot air to the outside.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Attach the drywall filler to a larger piece of wood set it in the hole and drive screws through the ceiling into the wood. One is to route it over to a soffit vent and attach it to the back of the soffit vent but this can work against your exhaust fan because that s actually an air intake so not as good as other methods. The lower half of the flange sits on top of the shingles.

Climb into the attic and clear away any insulation from around the hole. Then drill a hole on the roof top. Next we must slip a worm drive metal clamp on the inside part of duct liner. The patched areas can be repaired with spackling later.

Secure the vent flanges with roofing nails before installing the shingles. From inside the attic drive a nail through the roof directly above the bathroom vent fan. To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. Check the damper and the screen in prior to installation.

In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. If the hole is too big you ll need to patch the ceiling. Install the roof vent install the roof vent by sliding the top flange under the shingles above it and resting the bottom flange on the shingles below. How to install a bathroom fan vent in the soffit.

Apply a bead of asphalt roof cement on the bottom of the vent. Apply roofing adhesive on the underside of the flanges to seal.