Can I Exhaust Bathroom Fan Into Attic

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.

Can i exhaust bathroom fan into attic.

Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. 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. You can find 4 in. 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.

This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. The roof soffit is also an excellent place to vent the bathroom exhaust. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside.

It seems like such an easy solution just leave a bathroom vent hose in an attic. The installation process is similar to the ones already discussed. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. Options for venting a bathroom exhaust fan include best to worst.

Bathroom exhaust fans perform an important function by removing excess moisture from your home. So can you vent a bathroom exhaust fan into the attic. Duct already wrapped in insulation at home centers. Bathroom exhaust fan venting tips and best practices.

You should never exhaust the bathroom fan directly into the attic. It is against the residential code and will lead to mold growth in the attic.