Bathroom Vent Vented To Attic

Smells are merely an annoyance.

Bathroom vent vented to attic.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. 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. Both bathrooms are vented by a single in line fan that has one exhaust vent running through the roof. Moisture though is the real problem since it can create potentially hazardous mold and mildew eating away at your walls ceiling and trim.

Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. Each fan vents separately out the roof. Bathroom ventilation codes require a bathroom exhaust fan to vent to the exterior not the attic for health and structural reasons. Bathrooms are wet smelly places that often are closed in and unventilated.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly. 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. Options for venting a bathroom exhaust fan include best to worst.

On my home inspections it is still a common sight for me to see bathroom vents going directly into the attic spewing moisture. No you cannot vent the bathroom exhaust fan into the soffit vents. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Bathrooms can only benefit from some type of exhaust venting system but which type do you need and what does the bathroom exhaust fan venting.

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. 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. We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have.