Bathroom Vent Through Attic

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.

Bathroom vent through attic.

The 2nd bathroom vent drips on the floor and is ruining the ceiling. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. A single exhaust exits through the roof figure a.

This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. You mount a switch in each bathroom. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. The master bathroom and the 2nd bathroom vent through the roof and through the same opening.

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. 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. The vent hood will have a little flap that opens when air is blowing through the vent but at other times it will remain closed.

Can you vent a bathroom exhaust fan into the soffit vents. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. This system is quiet too. Because the fan is in the attic you ll hardly hear it.

Either way the vent will have to go directly to the outside and installed with a vent hood cover.