River wash gravel is placed in the drain line trench to aide in water flow. We then install Polydrain, an air-gap technology drainage board at the cove area where the foundation wall meets the basement floor. This heavy duty constructed drainage matting is bent and placed up the wall and over the trench. It increases water drainage and directs intruding water due to hydrostatic pressure into the subgrade tile system. After the installation of the Polydrain the trench is sealed with commercial grade concrete.
Interior Basement Waterproofing solutions can also include wall systems. Options are a 6 mil polyethylene vapor barrier which is tucked into the Polydrain and installed typically from floor to ceiling. For a cleaner look and for walls with a high moisture content Polywall, an extruded resin sheet can be installed. It is easy to clean, 100% waterproof and does not support mold, mildew or bacteria growth. For wall areas with high water content, such as corners, problem areas or older construction, Polydrain can be installed full wall or chest high. There are also commercial grade epoxy and polymeric acrylic coatings available.