Exhaust Fan Venting Into Attic

Options for venting a bathroom exhaust fan include best to worst.

Exhaust fan venting into attic.

Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. Bathroom exhaust fans perform an important function by removing excess moisture from your home. 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. If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it.

This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. No you should not vent a bathroom fan directly into an attic however you can vent a bathroom fan through an attic while it terminates on the roof or gable end. 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. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside.

No you cannot vent the bathroom exhaust fan into the soffit vents. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.