Bathroom Exhaust Fan Through Roof

Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it.

Bathroom exhaust fan through roof.

Try to keep it close to the fan location. To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. Then drill a hole on the roof top. Table of contents hide.

An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Start in the attic and drill a hole through the roof in the desired vent location. This sealant strip is installed to keep cold air from coming in and according to a broan customer service rep it also helps to prevent unbearable metal on metal chatter.

Bathroom exhaust venting does not have to exit up through the roof and in fact that s not necessarily even the best termination. The alternative to a roof exhaust if you re concerned about not being able to seal the hole in the roof is to exhaust through a gable end. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Most roof caps for bath fan exhausts have a light aluminum backdraft damper which rests on a sealant strip which is basically a foam piece of weatherstripping.

And of course a bathroom with a window doesn t require an exhaust vent.