Basement Waterproofing with Clint Miller
  • Oct 16, 2020
Waterproofing vs. Damp Proofing

Waterproofing or damp proofing your home and the floor above a basement protects your investment into your home. Waterproofing my basement or crawl space prevents ground moisture from seeping into the basement or crawlspace. Once it gets in there, it creates humidity, which then gets into your home. Excess water and humidity create mold and attract pests such as termites, spiders and mice. It will also cause the wood in your home to rot.

If you have a lot of water draining toward your home, you might have to waterproof your basement, plus add additional drainage, such as a French drain, to move the bulk of the excess water away from your home.



Waterproofing is not the same as damp proofing. Waterproofing materials have different properties that work for waterproofing my home and basement waterproofing. Making your basement or crawlspace nearly impervious to water might sound like a big job, but in most cases, when your house is built, the contractors waterproof the concrete.

Waterproofing cost depends on whether you have a basement or crawlspace, and the method you that is best for your home. The materials used must stop hydrostatic pressure – water directly against your basement or crawlspace walls that seep through, water vapor that creates humidity. It must be flexible and strong enough to cover and block cracks in the concrete.

Some of the materials used for waterproofing include:


  • Butyl rubber sheeting;
  • Rubber-based coatings;
  • Hot-applied rubberized asphalt coatings;
  • Cold-applied rubberized asphalt coatings;
  • Bentonite;
  • Urethane coatings; and
  • Crystallization products.

Homes that require waterproofing instead of damp proofing are generally those in areas with a higher water table or those that are prone to flooding from nearby rivers, streams and other bodies of water.


Damp Proofing

Damp proofing doesn’t prevent water from getting into your crawlspace or basement, but it prevents moisture from damp soil from penetrating the concrete. It is more of a moisture barrier or vapor barrier, rather than a complete barrier to prevent water from entering your basement or crawlspace.

It provides adequate moisture control for many years for homes that do not have a lot of water running against the basement or crawlspace. In most cases, unless the ground has a lot of water, such as in areas with a high water table, your home is damp proof.

Damp proofing is usually an asphalt-based substance rolled, painted or sprayed on the basement or crawlspace concrete walls below the fill against the house. In places with a lot of ground saturation, you might have waterproofing below the soil line and damp proofing above the soil line.

For homes that are not in flood zones or are in areas with a lower water table, damp proofing is often enough protection from moisture.


Contact Clint Miller Exterminating

If you notice water seeping into your crawlspace or basement, or you notice mold growing in your home, especially near the basement ceiling or under your floor, you might need to refresh your waterproofing or damp proofing. If the ground is saturated near your home, you may also need to have extra drainage to minimize the amount of water that comes into contact with your home.

Contact Clint Miller Exterminating to learn more about waterproofing your basement and to discuss the best form of waterproofing or damp proofing for your home.

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