The Differences between Damp-Proofing Vs. Waterproofing Your Basement

When you hear the terms “damp-proofing” and “waterproofing” regarding your home’s basement and foundation, is there a difference? What do these terms mean?

There are differences – and the differences are significant if you want to keep water out of your basement.

Foundation damp-proofing is generally done during the construction phase to meet minimal building code standards. Damp-proofing makes use of a moisture-resistant material consisting of hot liquid asphalt and rubber coating with an insulating panel. The problem is that although damp-proofing is moisture resistant, it is not complete protection from water. Damp-proofing is only applied internally and water can still pass through the foundation externally.

Foundation waterproofing, on the other hand, will stop water seepage caused by hydrostatic pressure – which is the rising and falling of ground water under the concrete, making water penetrate the basement slab. Foundation waterproofing systems are applied externally so that water is prevented from penetrating through the foundation