Bathroom Fan Blowing Into Attic

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

Bathroom fan blowing into attic.

These fans are commonly mounted in an upstairs stairwell or hallway ceiling where there s at least 3 ft. This might be a factory included damper or one installed by the technician. Rather than extracting the air out of your home you are simply moving it into another area of your home. If possible i d peek into the attic to make sure the vents are clear and working before cutting the hole and installing the vent.

This sends hot air up and out cooling your house and your attic. You should never exhaust the bathroom fan directly into the attic. Of clearance above the fan. No you cannot vent your bathroom exhaust fan into the attic.

You may have heard that it s okay to run your bathroom extractor fan into the attic or upper living space of your home. This also applies to dryer exhaust. The science of creating the right atmosphere in your attic space did not really become a focus of homebuilders until the last 8 10 years. Every exhaust fan system should have a backdraft damper installed where the exhaust duct exits the roof or exterior wall.

Use the reference hole as a landmark to transfer your measurements from the attic to the ceiling. Most homeowners that have a bath fan don t give a thought to where the moist air from the bathroom is exhausted. Unfortunately we find far too many bath fans that exhaust the moist air into the attic. Through the roof or an exterior gable wall.

Bathroom moisture can also lead to mold and mildew problems. Use a layout square or framing square to draw the. This is inaccurate and can lead to severe problems in your home. A powerful fan draws cooler early morning and evening air through open doors and windows and forces it up through the attic and out the roof vents.

Where does the moisture go. Many assume that the fan vents outside through the roof which is the proper method. Your bathroom exhaust fan blows directly into your 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.

This damper is a metal piece that closes the exit making the fan a one way system. Putting warm summer room air into the attic will not cause condensation because the attic ventilation should vent the area. Lee sam jun 9 17 at 0 03. Left unaddressed this almost always leads to serious problems.

Condensation is caused when warm moist air reaches its dew point.