What Is White Mold in the House?

Mold, a type of fungus that grows inside your home, thrives in excess moisture and little ventilation. Mold ranges in color from black and brown to yellow and white. The white mold in your house can be one of several types of white mold. Remove this mold as soon as you can to prevent damage to your health and home.


As one of the most common types of mold, aspergillus can appear powdery and white in your home but also look black, yellow, brown, green or gray. This type of mold can cause health issues in those with weak immune systems. Aspergillus can also cause infections.


Penicillium is another type of mold that can appear powdery white in your home. It can also look blue or green. While penicillium does not generally cause health issues, it can cause an allergic reaction in some people. This type of mold appears on food as well as insulation.


Acremonium is another type of white mold that appears powdery in your home and tends to grow in damp areas and on insulation and sheet rock. Acremonium is linked to serious issues such as infections, which can cause long-term health issues and complications, besides mild irritation.

Cleaning White Mold

Remove white mold as soon as you notice it to prevent it spreading in your home and causing more issues. To clean white mold, spray a cleaning solution on it that will kill the mold. Use commercial products, soap and water or a bleach solution of no more than 1 cup of bleach in 1 gallon of water, recommends the CDC. Let it sit for several minutes before scrubbing it off. Rinse the area with clear water and dry it completely.

Kaye Wagner

Kaye Wagner has been working in the fields of journalism and public relations since 2006 and is a recipient of a National Hearst Award. She is particularly interested in home-and-garden projects, as well as beauty and fashion writing. An avid traveler, she also writes travel reviews and guides. Wagner earned a Bachelor of Arts in journalism from Brigham Young University.