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From inside the attic drive a nail through the roof directly above the bathroom vent fan.
Venting bathroom fan through roof. Since the roof doesnt have to be cut the chances of this venting method causing a leak is less likely. To help your attic stay clear of mold or mildew make sure all exhaust fans running through the attic leave through the roof. Options for venting a bathroom exhaust fan written. Duct already wrapped in insulation at home centers.
For one youll lessen the chance of the warm air getting back into the attic. Be sure to clarify this with your local permitting department. If section r3034 is included but the previous section has been struck through or not included this may mean that your bathroom must have a bathroom fan and that a window cannot be used as a substitute venting method. Behind a soffit vent.
Options for venting a bathroom exhaust fan include best to worst. Although this isnt always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. Here is a simple step by step process that anyone can follow to vent the bath fan through the roof. Directly through an exterior wall.
Behind a gable vent. Ask the builder 574723 views. From the roof find the nail and use the utility knife to cut roof shingles from. If youre tempted to vent your exhaust fan through an existing roof vent or even.
So i bought two vent hoses so that i could extend the bathroom exhaust all the way to so the soffit and out of the house. Roof flashing for bathroom fans duration. Through the roof or an exterior gable wall. Gravity helps this because when water hits the side of the house it will run to the ground.
Center the nail between two rafters. Holes that are cut into the sides of building usually dont have problems with taking on water. You can also use this vent hose as a dryer vent hose. 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.
In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
