Bathroom Exaust Into Attic

Dumping bathroom exhaust into an attic or under roof space invites costly mold contamination frost under the roof in freezing climates moisture damage to roof sheathing possibly even plywood delamination or rot roof failures and shorter roof shingle life.
Bathroom exaust into attic. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. 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. No you cannot vent your bathroom exhaust fan into the attic. It may also violate a shingle warranty.
So can you vent a bathroom exhaust fan into the attic. Bathroom exhaust fans perform an important function by removing excess moisture from your home.
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