Mold In Attic From Bathroom Fan

Most building codes require that bathrooms be equipped with active ventilation in the form of a ventilation fan.

Mold in attic from bathroom fan.

In many cases moisture from bathroom fans is the primary source of attic mold infestation. Options for venting a bathroom exhaust fan include best to worst. Dryer vents plumbing vents kitchen or bathroom fans vented into the attic. The bathroom vent fan is a major weapon against bathroom mold.

Bathroom exhaust fans perform an important function by removing excess moisture from your home. If you eliminate just one of these elements mold will starve and die. 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. Above all else a bathroom ventilation fan should be connected to a duct capable of venting water vapor and odors into the outdoors.

Mold growth within the bathroom or attic is a clear indication of improper ventilation that must be corrected in order to avoid structural decay and respiratory health issues. Moisture food and warmth. Related to 3 above this practice can pump warm moist air into the attic where it can be trapped and begin the cycle of mold growth. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems.

It is important to have a balanced ventilation system using equal amounts incoming and outgoing air. For bath fans it is important to insulate around the vent pipe exiting the fan to prevent moisture from condensing inside the pipe.