4 Smart Crawl Space Waterproofing Tips

Four Smart Crawl Space Waterproofing Tips

There’s nothing wrong with calling in an expert to handle crawl space waterproofing in your home.But why bother when you can do it yourself?

It’s easy to get it wrong, however. Make one mistake and it could cost you a lot of money when it comes to the repairs.

Below are four tips to ensure that your crawl space is always dry:

1. Build your Home in the Right Place

Smart waterproofing for your crawl space begins from the moment you erect a building. You can save yourself a lot of hassle right from the beginning by studying the terrain you want to build on. If your home is just above the water level for instance, floods will be common and you’re already working against the odds.

Choosing a site away from areas prone to flooding can prevent crawl space moisture problems later.

2. Check Exterior Drainage

Water should never come into regular contact with the exterior of your home. Your exterior drainage should make water to run away from your house without hitting the exterior.

Another smart tip is to use a waterproofing agent on the concrete. Other ideas you will want to consider include:

  • Adding five inches of top soil around the foundations to improve drainage.
  • A perforated plastic tile around the base of the building to prevent water pooling.
  • Graveling the area around the foundations to enable a strong base.

3. Use a Sump Pump

A sump pump allows you to easily remove standing water from your home. As long as the water hasn’t risen to above the height of five inches, a sump pump will help direct water away from your house.

When buying a pump, make sure you focus on how much water it pumps per hour. Too many people concentrate exclusively on how powerful the motor is, even though it doesn’t always matter.

4. Drying the Air

Moisture is one of the biggest reasons why crawl space waterproofing is so difficult to manage.

Dry out the air by using a dehumidifier. This will minimize the humidity and prevent condensation.
Additionally, you should reduce air ventilation so it doesn’t have the power to enter your home in the first place. You can do this by adding a polyethylene vapor barrier to the walls. Sealing your walls with concrete will prevent the moisture from entering via the concrete.


These tips should help you keep your crawl space dry and moisture free. In the event you do experience flooding, hire a contractor to look at the problem. The best thing you can do in this scenario is to install a sump pump.