How to Waterproof Bricks

Written by keith dooley
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How to Waterproof Bricks
Waterproof brick to prevent water from being absorbed by the porous material. (Jupiterimages/Photos.com/Getty Images)

Brick is used on exterior surfaces of homes and structures as well as for constructing patios and walkways. Available in a wide variety of textures and colours, brick is a popular and versatile building material. A step often overlooked by many homeowners is sealing brick to make it waterproof. Brick is a highly porous material that will easily absorb moisture and water. Cracks and deterioration can occur when bricks absorb water.

Skill level:
Moderate

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Things you need

  • Broom
  • Hose
  • Dish detergent
  • Bucket
  • Roller or brush
  • Masonry waterproofing

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Instructions

  1. 1

    Sweep the brick with a broom to remove as much dirt, dust and debris as possible.

  2. 2

    Spray the brick with water from a garden hose to rinse away the loosened dirt and debris.

  3. 3

    Mix a soapy solution of detergent and water in a bucket. Dip the broom in the solution and scrub the brick to clean deep into rough brick features and remove any stubborn deposits of dirt or stains.

  4. 4

    Rinse the detergent from the brick and allow the brick to completely dry before beginning the waterproofing process.

  5. 5

    Pour the masonry waterproofing into a paint roller tray if applying with a roller or into a paint bucket if using a brush.

  6. 6

    Begin in one corner or along an edge and begin applying the masonry waterproof in a smooth, even manner. Completely cover the brick leaving no gaps that are unprotected, as this will provide an entry point for water and moisture. Allow the waterproofing to dry for at least four to five hours before using, as in the case of a brick walk.

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