How to Waterproof a Basement Room

A waterproof basement room is important not only for keeping the area clean but also for protecting the health of your family. Water damage can lead to mold growth, which can require professional cleaning. There are a couple of things, inside and outside your home, that can help ensure your basement room will be water-free for years to come.

Concrete crack injection kit
Caulking gun
Waterproofing masonry paint
Paint roller or brush
Shovel
Dirt
Flexible downspout extension

Instructions

- 1
  Fix any cracks on the interior walls with a concrete crack injection kit. Apply it to the length of the crack. This material is good for fixing basement cracks that are less than 1/2-inch wide because it adheres well to the concrete and allows for slight expansion and contraction. It also maintains a tight seal so no water can penetrate.
- 2
  Apply a coat of waterproof masonry paint to seal the walls, using a paint roller or brush. These paints are specifically designed to prevent water from penetrating through the wall.
- 3
  Ensure that the land slopes away from your house for at least 6 feet, suggests the Canada Mortgage and Housing Corp. This aids in water drainage, so it flows away from your house instead of into your basement. If necessary, add dirt next to the foundation to create the correct slope.
- 4
  Check that eaves and downspouts are clear of leaves and other debris. If your downspout is not extended away from the house, attach a flexible downspout extension. Make sure it fits snugly, extends at least 6 feet and is not draining water toward a neighbor's property.

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