Why Not Vent Fans Into Attic

Kitchen and bath fans vent directly into the attic.

Why not vent fans into attic. No you should not vent a bathroom fan directly into an attic. 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. Your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection. After further inspection it was evident the current home owners vented their bathroom exhaust fans directly into the open attic space and not to the outside.

Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working. Some homes were built without ridge vents or roof vents. When we got into the attic i quickly noticed the smell moisture and what i could see as mold on the roof rafters above each bathroom.

Noticed one of the attic vents was not working. The downside of attic ventilation fans. Good insulation reduces fan effectiveness. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure.

Most fans cannot keep up. It seems like such an easy solution just leave a bathroom vent hose in an attic. 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. Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.

Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. Even installing a larger gable vent can make a difference. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. Things have been ok low energy bills house very comfortable.

Some homes simply need to have more vents added. Either the contractor wasn t aware of the need or the home is older and it wasn t available at the time. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.

However the utility of attic ventilation fans is actually quite a controversial topic. Attic fan not turning on.