Bath Fan Vents To Attic

The lowdown on venting your bath fan into an attic is that it can be done but it should terminate on the outside.

Bath fan vents to attic.

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. Can you vent a bathroom exhaust fan into the soffit vents. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Options for venting a bathroom exhaust fan include best to worst.

Vent your bath and kitchen exhaust fans through the roof through a special roof hood. 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. No you cannot vent the bathroom exhaust fan into the soffit vents. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

The truth about attic bathroom venting. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. I would by lying if i told you that it will cause problems it may be totally fine. This setup requires an in line centrifugal fan mounted in the attic drawing air simultaneously from both bathrooms see photo.

But while you can t have two fans with one vent you can make one fan and one vent serve two bathrooms. A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan. Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.