Damp proofing is a coating, usually asphalt-based, that is either sprayed on or hand applied in order to prevent moisture from passing though foundation concrete and masonry walls into the interior space.

Durable Protection

Our specialists provide a variety of products for a long-term preventative measure for moisture protection.

There is a distinct difference between damp proofing and waterproofing.  Damp proofing is intended to keep out soil moisture while waterproofing keeps our both moisture and liquid water.  Any concrete or masonry foundation walls that retain earth and enclose confined uninhabited interior spaces and floors below grade shall be damp proofed from the top of the footing to the finished grade. 

It is important to note however that damp proofing will not stop liquid water under pressure and it will not bridge the shrinkage cracks that develop in concrete walls.  In short, damp proofing helps keep basements a little drier, but does not prevent water infiltration.