How to Fix a Moldy Wall

Written by damon koch
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A mouldy wall is caused by moisture and lack of air flow. These conditions make it inevitable that mould will grow in your home. The moisture can be a result of a plumbing leak or it may be entering the home from the outside.Once you have determined the cause and stopped the supply of moisture, the mouldy wall must be repaired. Fixing a mouldy wall requires some effort, but is worth it to have a wall that does not show the signs of a mould problem.

Skill level:
Moderate

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Things you need

  • Box fan
  • Bleach
  • Spray bottle
  • Rag
  • Stain blocker
  • Paint brush
  • Touch-up paint

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Instructions

  1. 1

    Pull furniture away from the mouldy wall and open windows in the room to allow air flow. Use a box fan to move air over the affected area. Dry the wall thoroughly for a day or two.

  2. 2

    Mix water and bleach in a spray bottle using a 50-50 ratio.

  3. 3

    Spray the bleach mixture on the affected area of the wall and wipe it with a rag. Remove as much of the mould as you can using this method.

  4. 4

    Cover the affected area of the wall with a stain blocker using a paint brush. Let the stain blocker dry for a day and apply a second coat if any signs of staining can be seen. Let the second coat dry for a day.

  5. 5

    Paint the repaired area of the wall with touch-up paint that matches the rest of the wall. Apply the paint using a paint brush.

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