Vent Bathroom Fan Through Roof Or Wall

These are usually installed on a pitched roof.

Vent bathroom fan through roof or wall.

Start in the attic and drill a hole through the roof in the desired vent location. Will be usually fed. Going to the soffet is 12 feet. It is because of this that many builders tend to advise against this method.

If you want to vent a bathroom fan through an exterior wall you will have to cut a 3 inch or 4 inch hole with a hole saw drill bit. In order to accomplish this the roof has to have a hole cut in it. Leave the drill bit sticking through the roof so you can find the hole. Choice is go up to roof 5 6 feet or out the present vent 15 18 feet with insulated pipe or shorten the line by going straight to side of home but this requires going up high with latter to drill a new vent hole as tight quarters in attic prevent drilling from attic.

From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. The fan will need to be an inline fan with ducting and a grill in the bathroom. Adding a vent to the roof wiil require a vent kit associated for the type of tiles you have diffence in prices if your not experienced you will need a roofer possibly scaffolding a crawler ladder all which depend on height of the roof. This involves running ductwork from the fan usually though an attic and out through the roof.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Broan sells an inexpensive model which is probably available at any big box store.