Waterproofing Exterior Basement Walls

Exterior waterproofing involves excavating all around the house to the full depth of the foundation walls then installing a waterproof coating or membrane topped by drainage panels.
Waterproofing exterior basement walls. The first waterproofing layer that i applied to the foundation wall was thoroseal foundation coating a cementitious waterproofing product. Concrete walls can t be damaged merely from direct contact with ground water. The principle benefit of the coating is that it fills the pores of the cement block which prevents water from seeping in. Only if water can flow through concrete is water detrimental to the structural strength of non reinforced concrete.
Elastomeric membranes are made of modified asphalt and exhibit great waterproofing characteristics. 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. It s also the most expensive often 15 000 to 30 000. Moisture membrane provides protection from outside water table and seepage 3 4 washed gravel replaces dirt to.
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.