Install Bathroom Exhaust Fan Vent Roof

Attach the drywall filler to a larger piece of wood set it in the hole and drive screws through the ceiling into the wood.

Install bathroom exhaust fan vent roof.

Cut the exterior vent location depending on where you intend to exhaust to the exterior access either the side wall or the roof of the house. The patched areas can be repaired with spackling later. Also bring your reciprocating saw cordless drill pencil and silicone caulk. Center the nail between two rafters.

To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. 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. Cut a piece of drywall to make the ceiling hole the right size for your fan. Nail the lower corners with roofing nails and tar the heads.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Apply roofing adhesive on the underside of the flanges to seal. Table of contents hide. Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it.

Secure the vent flanges with roofing nails before installing the shingles. This involves running ductwork from the fan usually though an attic and out through the roof. Then drill a hole on the roof top. The lower half of the flange sits on top of the shingles.

In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Apply a bead of asphalt roof cement on the bottom of the vent. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Through the roof or an exterior gable wall.

Bring your round vent for walls or vent cap for roofs. Slide the vent under the shingles so they cover the top half of the vent flange. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. Some installers particularly in hotels or rental units hard wire the bath exhaust vent fan to force it on when the bathroom ceiling light is on thus assuring that the vent fan is in fact used.

If the hole is too big you ll need to patch the ceiling. Typically the bathroom vent fan motor is powered by the bathroom ceiling light fixture circuit. It is because of this that many builders tend to advise against this method.