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.
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.
In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.
Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.
The 2nd bathroom vent drips on the floor and is ruining the ceiling.
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.
It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly.
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.
Ceiling fans vent either into the attic or outside through the roof.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.
The master bathroom and the 2nd bathroom vent through the roof and through the same opening.
By the diy experts of the family handyman magazine.
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.
No you cannot vent the bathroom exhaust fan into the soffit vents.
This involves running ductwork from the fan usually though an attic and out through the roof.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans.
Bath vent fan installation building codes bath vent fan troubleshooting bath vent fan repair.
But you can install one fan in your attic for both bathrooms and make your bathroom quieter too.
We explain how to install bathroom exhaust fans or vents the vent ducting.
There are wall mount exhaust fans as well as ceiling exhaust fans.
Venting two bathroom exhaust fans through one roof duct won t work sorry to say.
Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.
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.
How to install a bathroom vent fan.
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.
