Install Bathroom Roof Exhaust Vent

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

Install bathroom roof exhaust vent.

Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan. Drill a hole large enough for the saw blade then cut out the circle with a reciprocating saw saber saw or keyhole saw. Choosing a whole house fan. Plenty more videos t.

Be sure to install the duct in the position specified by the instructions so the housing will line up correctly. Measure the vent fan. Then use a screw to secure the duct connector to the edge of the hole so that it will line up with the exhaust on the fan housing. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

Remove the shingles from around the cutoff without damaging the underlying roof. Trace a circle on the underside of the roof just large enough for the roof vent and tailpipe. The duct should vent to the outside. See below for a shopping list and tools subscribe.

The lower half of the flange sits on top of the shingles. Then drill a hole on the roof top. Apply a bead of asphalt roof cement on the bottom of the vent. Options for venting a bathroom exhaust fan include best to worst.

Through the roof or an exterior gable wall. From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Slide the vent under the shingles so they cover the top half of the vent flange. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

Be sure to like and subscribe in order to help me bring you more helpful videos filled with tips and tricks i ve learned over the years. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. Nail the lower corners with roofing nails and tar the heads.

Center the nail between two rafters. 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. Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it.