Venting Bathroom Fan Through Roof

Options for venting a bathroom exhaust fan include best to worst.

Venting bathroom fan through roof.

From inside the attic drive a nail through the roof directly above the bathroom vent fan. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Going to the soffet is 12 feet. Behind a gable vent.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Center the nail between two rafters.

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. Leave the drill bit sticking through the roof so you can find the hole. See below for a shopping list and tools subscribe. Try to keep it close to the fan location.

Behind a soffit vent. In order to accomplish this the roof has to have a hole cut in it. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Robert s has the largest base flange of any bath roof vent cap which makes it super easy to install and make watertight on the roof.

It is because of this that many builders tend to advise against this method. Start in the attic and drill a hole through the roof in the desired vent location.