The truth about attic bathroom venting.
Venting attic bathroom fan.
I would by lying if i told you that it will cause problems it may be totally fine.
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.
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.
In fact i have seen numerous houses that haven t yet had signs of mold with the bath fan venting incorrectly.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
No you cannot vent the bathroom exhaust fan into the soffit vents.
Bathroom exhaust fan venting code summary section r303 3.
A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
Bathrooms must have windows when this section is adopted by a community it essentially says that for venting purposes bathrooms must have windows that open.
Can you vent a bathroom exhaust fan into the soffit vents.
Bathroom exhaust fans perform an important function by removing excess moisture from your home.