Mold In Attic From Bathroom Fan

In many cases moisture from bathroom fans is the primary source of attic mold infestation.

Mold in attic from bathroom fan.

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. If you eliminate just one of these elements mold will starve and die. The bathroom vent fan is a major weapon against bathroom mold. It is important to have a balanced ventilation system using equal amounts incoming and outgoing air.

Bathroom exhaust fans perform an important function by removing excess moisture from your home. Moisture food and warmth. Mold needs 3 things to grow. Options for venting a bathroom exhaust fan include best to worst.

The fan s job is to move moist air outside the house before it can condense and permeate into mold prone materials. Most building codes require that bathrooms be equipped with active ventilation in the form of a ventilation fan. Bathroom fan vent code requirements include no venting to attic areas to help reduce mold or structural problems. 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.

For bath fans it is important to insulate around the vent pipe exiting the fan to prevent moisture from condensing inside the pipe. 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.