Interior Wall Mould Treatment. Mix a 5050 solution of ammonia and water. In fact you may not see signs of mold on the outside of the wall but the inner wall may be growing mold spores that can be spread throughout the house.
A bleach solution also works to kill mold. Remove mold stains from walls. All mold growth inside walls must be physically removed and properly disposed followed by treatment with effective fungicides.
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Only paint after you have properly cleaned and dried the surface. Mix a solution of one part bleach to three parts water in a spray bottle and thoroughly saturate the moldy areas of the wall. This mould treatment is easy to. Rinse with a cloth and water and leave to dry.