River wash gravel is placed in the drain line trench to aide in water stream. Then we put in Polydrain, an air-gap technology drainage board at the cove area where the base wall meets the cellar floor. This heavy duty constructed drainage matting is bent and placed up the wall and above the trench. It increases water drainage and leads intruding water because of hydrostatic pressure to the subgrade tile program. After the installation of the Polydrain that the trench is sealed using industrial grade concrete.
Columbia Interior Basement Waterproofing solutions can also include wall systems. Options are a 6 mil polyethylene vapor barrier that’s tucked into the Polydrain and set up normally from floor to ceiling. For a cleaner look and for walls using a high moisture content Polywall, an extruded resin sheet could be set up. It’s not difficult to wash, 100% waterproof and does not support mold, mildew or bacteria development. For wall areas with high water content, such as corners, problem areas or old structure, Polydrain can be set up full wall or chest elevated. Additionally, there are commercial grade epoxy and polymeric acrylic coatings accessible.