Is It Ok To Vent Bathroom Into Attic. It is never OK to vent directly into an attic even if the attic itself is vented. No you should never exhaust your bathroom fan right into the attic.
It is not a good idea to vent your bathroom exhaust fan into the attic so calling on a professionally licensed roofing contractor is important for this project. 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. Only two plumbing set-ups could require sewer pipes in the attic.
The excessive moisture will cause condensation on the roof members insulation and eventually cause mold.
There are building codes that need to be followed to ensure a successful bathroom exhaust fan is vented properly. There are building codes that need to be followed to ensure a successful bathroom exhaust fan is vented properly. If you vent a dryer into a attic space you are waiting for a fire to happen plus the lint turns rock hard because it holds so much moisture. Venting this fan into the attic is simply asking for problems.
