Bathroom Ventilation Fan Into Attic
However you can vent a bathroom fan through an attic while it terminates on the roof or gable end.
Bathroom ventilation fan into attic. No you cannot vent your bathroom exhaust fan into the attic. Climb into the attic and clear away any insulation from around the hole. 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. Draw a mark on the bathroom ceiling where you d like to install the vent fan.
It seems like such an easy solution just leave a bathroom vent hose in an attic. For optimum performance locate it between the shower and the toilet. You should never exhaust the bathroom fan directly into the attic. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems.
Through the roof or an exterior gable wall. No you should not vent a bathroom fan directly into an attic. The question about moist air reentering an attic through soffit vents after it has been blown out of an exhaust vent opening is a fair one but i don t think that s likely to be a significant building moisture source. Options for venting a bathroom exhaust fan include best to worst.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. It s all outdoor air anyways right.