Put on old clothes prior to cleaning; bleach will damage clothing if splashed. Wear rubber gloves to protect your hands from chemicals and mold. To prevent lung damage, wear a respiratory mask in areas with little ventilation.
Mix a solution of 4 parts water with 1 part bleach in a bucket. Scrub the moldy cement with the sponge and scrub brush to remove all physical signs of the mold. Let the area dry, and repeat until you have used up all of the bleach solution.
Scrub areas deeply penetrated with mold with a biological cleaner or fungicide. The bleach solution only works to kill surface mold and will not fully destroy mold that has penetrated an area. Use these products in areas where mold has grown for a long time, as you will not know how deeply it has penetrated.
Dry the area completely. Examine the cement to verify that you've removed the mold.
Contact a contractor or mold specialist for severe mold outbreaks, or in cases where the mold elimination process will require the removal of wall and flooring units.
Prevent mold from returning by sealing cracks that cause moisture buildup. Provide proper ventilation for the area, and make sure you've eliminated any other moisture sources. Monitor the area to verify that the mold does not return.
Things You Will Need
- Scrub brush
- Rubber gloves
- Respiratory mask
- Completely remove all mold growth and apply a sealer to the area prior to applying paint.