Painting over mold does not kill it. The mold causes it to peel back off the wall and continues to grow beneath the paint. The correct approach to manage a mold problem is to work out the reason for the moisture, then fix this problem and remove the mold. Infestations and mold of other molds could be dangerous and are managed by a remediation specialist. You should do this before painting and are able to fix mold problems that are smaller yourself.
Removal and Repainting
Protect carpets and flooring under the moldy area with a plastic drop cloth and wash the affected area with a sterile cloth and mild detergent. Wash it , when the area has dried. Repeat this procedure again in 20 minutes. Wait 30 minutes and then wash the wall with water. Last, apply a cleaner. Leave this option on the wall without rinsing. Allow the wall and paint with products. In problem areas where you anticipate mold can grow again, such as bathrooms, choose. These paints will not kill mold that is current but are resistant to new growth. Use these paints caution around children and pets, as the combination creates a toxic gasoline and never mix bleach with ammonia.