How To Vent An Exhaust Fan Through Existing Attic Vent

No you cannot vent the bathroom exhaust fan into the soffit vents.

How to vent an exhaust fan through existing attic vent.

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. Bathroom exhaust fans perform an important function by removing excess moisture from your home. I was about to make a separate hole in the nearest gable to exhaust the fan but my wife asked if i could butt the exhaust pipe up to the existing gable vent in order to avoid making another hole. It should not be used for double duty for a bath fan exhaust.

The keys to proper bathroom exhaust pacific west roofing. This is a ridge mounted slant back roof vent it s used to ventilate attic air to the outside. If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it. See below for a shopping list and tools subscribe.

When i went to replace it i noticed that it wasn t being exhausted from the attic. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. My bathroom exhaust fan recently broke. Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood.

Venting a bathroom fan into an attic my detailed home inspector secrets. By the diy experts of the family handyman magazine. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. Warm moist bathroom air will condensate on its underside and can cause moisture damage mold on the roof sheathing.

If you vent the bathroom exhaust fan to close to the soffit vents which are vented plates under your homes outer edge and roof your home the air can be sucked right back into the attic from the soffit. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. Bathroom fan vent size pipe material exhaust bath fan through attic and roof install roof vent for bathroom fan if you cannot walk across the. But you can install one fan in your attic for both bathrooms and make your bathroom quieter too.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. Venting two bathroom exhaust fans through one roof duct won t work sorry to say. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.