Concrete walls can t be damaged merely from direct contact with ground water.
Waterproofing exterior basement walls.
When waterproofing basement walls with it brush or roll the paint on thickly enough to fill all the little surface holes then allow it to dry fully before a second coat is applied.
It s also the most expensive often 15 000 to 30 000.
The principle benefit of the coating is that it fills the pores of the cement block which prevents water from seeping in.
Exterior basement waterproofing includes 5 lines of defense installation of an exterior moisture barrier dimple board on the exterior basement wall to transport water to drainage.
A heavy coat of the membrane an asphalt modified polyurethane material can be troweled or sprayed on to seal the foundation wall against water from the outside.
Elastomeric membranes are made of modified asphalt and exhibit great waterproofing characteristics.
Therefore exterior concrete walls will not be damaged by mere contact with ground water and don t require waterproofing.
Most exterior basement waterproofing coating methods are of little value in preventing water from entering the basement as you can see by studying the basement cut away sketches.
The surest way to waterproof your basement walls is a full scale exterior waterproofing solution.
Install a waterproofing membrane.
Only if water can flow through concrete is water detrimental to the structural strength of non reinforced concrete.