Internal waterproofing, sometimes called damp-proofing which utilizes protective layers is applied prior to finishing in the form of liquid asphalt and rubber coating with an insulating panel. Yet internal waterproofing may still allow water to pass through the foundation externally if not applied correctly, as it is only moisture resistant and not 100% waterproof. Our external waterproofing system will prevent water from penetrating through the foundation due to hydrostatic pressure when the ground water rises and falls under the concrete foundation. We ensure water is redirected away from the foundation through a system of protective layering, coating, sealers, sump pumps and weeping tiles where it can dry in the surrounding undisturbed soil.

Yet there is a way to ensure interior waterproofing is effective for controlling water infiltration which keep your basement dry and mold free. This involves utilizing a spray foam once the internal waterproofing is complete to act as a vapour barrier and sticks to provide a continuous membrane rather than two which seals and insulates while eliminating the possibility of mold. Interior waterproofing is a more cost effective option and depends upon factors such as residential or commercial property, accessibility, amount of footage, height of basement and concrete thickness.