How to Clean Basement Black Mold

A basement usually has minimal light.

Basements are often dark and damp. They provide the perfect environment for black mold to form. Black mold is a fungus that grows in areas where moisture is present. There are numerous types of black mold that resembles the appearance of a more dangerous toxic black mold. If black mold is growing on materials that do not contain cellulose (ceiling tile, cardboard, wood) it is unlikely toxic mold is present. Toxic black mold should be removed by a professional. If you are unsure of what type of mold is growing in your basement, consult a mold remediation specialist.

Things You'll Need

• Bucket
• Water
• Detergent
• Stiff-bristled brush
• Spray bottle
• Bleach
• Respirator
• Non-porous gloves
• Old clothes

Instructions

1. Correct any moisture problem. Fix leaking water pipes that are causing moisture; also seal cracks around basement windows to prevent rain from coming inside.

2. Use a respirator to avoid breathing mold spores. Exposure to black mold can cause wheezing, nasal stuffiness and eye irritation. Wear non-porous gloves, old protective clothing and protective eyewear.

3. Mix 1 cup of detergent with 1 gallon of hot water. Dip a stiff-bristled brush into the solution.

4. Scrub the surface with the stiff-bristled brush in a circular motion. Dip the stiff-bristled brush into the mixture and repeat the process until the black mold is removed.

5. Mix 1 gallon of water with 1 cup of bleach. Pour mixture into a spray bottle.

6. Spray the surface with bleach solution to rinse the area. Scrub any remaining mold that is left on the surface. Allow to dry.

7. Dispose of cleaning supplies and objects with mold damage. Insert items into plastic bags to prevent mold spores from spreading. Seal the bags and place them outside through your basement window. This will contain the mold spores and prevent them from getting into your home.

Tips & Warnings

• Open windows while cleaning to provide a well-ventilated area.

• When you experience water damage, remove water and dry the area within 24 to 48 hours to prevent mold growth.

• Do not caulk or paint moldy surfaces.

References

• Centers for Disease Control and Prevention: Mold: Basic Facts
• U.S. Environmental Protection Agency: Mold Cleanup Guidelines
• Mrs. Clean: Tips For Removing Black Mold
• Allergy Buyers Club: Black Mold in Basements and Bathrooms FAQ

Resources

• Toxic Black Mold Information Center: Signs of a Mold Problem