Ceiling Fan Vents Into Attic

Bathroom exhaust fans perform an important function by removing excess moisture from your home.

Ceiling fan vents into attic.

The problem with this approach is that all of the moisture in the air goes onto the wood sheathing insulation wood rafters and wood ceiling joists which can lead to mold growth and rot. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the 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. Can you vent a bathroom exhaust fan into the soffit vents.

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. 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. Iliving 18 wall mounted exhaust fan automatic shutter variable speed vent fan for home attic shed or garage ventilation 1736 cfm 2600 sqf coverage area 4 6 out of 5 stars 224 130 69 130. The altered more powerful airflow blasts decades old dust through every crevice it can find.

Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. You d often blow air from one bathroom into the other and local building inspectors wouldn t approve it. The result is a cooler attic space with plenty of air exchange. 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.

But while you can t have two fans with one vent you can make one fan and one vent serve two bathrooms. Ever since a roofer talked my husband into replacing the broken attic fan with a ridge vent we re getting tons of dust in the living areas. On my home inspections it is still a common sight for me to see bathroom vents going directly into the attic spewing moisture. One thing with ridge vents installed in older home they didn t address.

First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic.