Bathroom Vented Into Attic

Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood.

Bathroom vented into attic. 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. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. Can you vent a bathroom exhaust fan into the soffit vents.

It seems like such an easy solution just leave a bathroom vent hose in an attic. No you cannot vent the bathroom exhaust fan into the soffit vents. 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. 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.

Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.

No you should not vent a bathroom fan directly into an attic however you can vent a bathroom fan through an attic while it terminates on the roof or gable end.