In Attic Bathroom Exhaust Fan

Each bathroom has its own exhaust fan.

In attic bathroom exhaust fan.

You ve now put the water right back up into the attic without realizing it. It s perfect for reducing cooling costs as it pulls fresh air from outside and expels warm attic air out through the exhaust vents. As warm moist air moves through a fans vent system in the attic the duct often become cooler especially in the winter thus condensate may form and drip back down through the fan itself. Bath exhaust is almost always warm and this air will float up and into the soffit ventilation openings.

One in line centrifugal fan can be mounted in the attic to exhaust the moisture from two bathrooms. You should never exhaust the bathroom fan directly into the attic. In those areas ventilation in bathrooms is required but it can be from a window or fan your choice. No you cannot vent your bathroom exhaust fan into the attic.

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 ve now put the water right back up into the attic without realizing it. It seems like such an easy solution just leave a bathroom vent hose in an attic. Both bathrooms are vented by a single in line fan that has one exhaust vent running through the roof.

Just a year ago i saw the absolute best bath exhaust fan roof cap. However you can vent a bathroom fan through an attic while it terminates on the roof or gable end. It can cause you a lot of problems with mold and mildew forming on the underside of your rafters and decking as well as getting into your insulation. Section 1203 4 2 1 of california s building code requires all bathrooms with a bathtub shower spa or similar fixtures to be ventilated by an exhaust fan.

It s all outdoor air anyways right. Condensate may also be dripping off the exterior surface of the vent duct in attic or crawl space. No you should not vent a bathroom fan directly into an attic. Most roof overhangs today have continuous soffit ventilation strips.

Each fan vents separately out the roof. The fan is able to accommodate anywhere from 1 200 to 1 800 square feet of attic space. Surprisingly bathroom fans are not required by some building codes. No it s never a good idea to have any exhaust fan in your home dump all that hot moist air in your attic.

All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans. 2 moisture droplets dripping from the exhaust fan or ducting.