Let me tell you.
Bathroom fan vent through attic.
Improperly ending a bathroom vent inside an attic can lead to unintended consequences and builders have stopped this bad practice many years ago.
In all cases the ducting needs to conduct the exhaust to the building exterior and needs to terminate in an animal proof vent cover.
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.
Through the roof or an exterior gable wall.
One in line centrifugal fan can be mounted in the attic to exhaust the moisture from two bathrooms.
It is because of this that many builders tend to advise against this method.
Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside.
You can find 4 in.
Bath vent fan duct routing.
All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans.
Duct already wrapped in insulation at home centers.
Each bathroom has its own exhaust fan.
Each fan vents separately out the roof.
It seems like such an easy solution just leave a bathroom vent hose in an attic.
It s all outdoor air anyways right.
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.
No you cannot vent your bathroom exhaust fan into the attic.
Surprisingly bathroom fans are not required by some building codes.
No you should not vent a bathroom fan directly into an attic.
You should never exhaust the bathroom fan directly into the attic.
Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
This is much easier to do if you have attic access because if you don t you usually have to remove some ceiling drywall and run the ducts along a joist.
The building code requires a bathroom exhaust fan to vent outside the building so installation of a new bathroom fan necessarily involves installation of ductwork.
Both bathrooms are vented by a single in line fan that has one exhaust vent running through the roof.
Options for venting a bathroom exhaust fan include best to worst.
In order to accomplish this the roof has to have a hole cut in it.
Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.
