Vent Bathroom Fan Through Roof Or Wall

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.

Vent bathroom fan through roof or wall.

Typically an exhaust fan that is vented through the roof has a roof hood or roof cap which allows air to exhaust but provides protection from wind blown rain. The fan will need to be an inline fan with ducting and a grill in the bathroom. It is because of this that many builders tend to advise against this method. In order to accomplish this the roof has to have a hole cut in it.

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. Try to keep it close to the fan location. Will be usually fed. 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.

Broan sells an inexpensive model which is probably available at any big box store. Start in the attic and drill a hole through the roof in the desired vent location. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Going to the soffet is 12 feet.

These are usually installed on a pitched roof. This involves running ductwork from the fan usually though an attic and out through the roof.