Bathroom Fan Vent Through Attic

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 through attic.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Either way the vent will have to go directly to the outside and installed with a vent hood cover. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans.

Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. But you can install one fan in your attic for both bathrooms and make your bathroom quieter too. Venting two bathroom exhaust fans through one roof duct won t work sorry to say.

The best way to do it is to give the bathroom exhaust fan its own direct vent to the outside of your home and not into the attic where it can mix with the air causing the issues mentioned above. Surprisingly bathroom fans are not required by some building codes. The correct way to vent a bathroom fan through an attic is to terminate the vent either to the roof or to the gable wall. How to install a bathroom vent fan.

We explain how to install bathroom exhaust fans or vents the vent ducting. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly. By the diy experts of the family handyman magazine.

Can you vent a bathroom exhaust fan into the soffit vents. The 2nd bathroom vent drips on the floor and is ruining the ceiling. Wall mount fans are mounted on an external wall of a home and are used if there isn t a way to vent through the roof as in the case of a bathroom on the first floor of a home. This article series explains why bathroom vent fans are needed and describes good bath vent fan choices necessary fan capacity and good bath vent fan and vent duct installation details.

Ceiling fans vent either into the attic or outside through the roof. Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. There are wall mount exhaust fans as well as ceiling exhaust fans.

This involves running ductwork from the fan usually though an attic and out through the roof. No you cannot vent the bathroom exhaust fan into the soffit vents. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.