River wash gravel is placed in the drain trench to aide in water flow. We then install Polydrain, an air-gap tech drainage board at the cove place in which the base wall meets the basement floor. This heavy duty constructed drainage matting is bent and placed the wall up and above the trench. It increases water drainage and leads intruding water because of hydrostatic pressure to the subgrade tile system. After the installation of this Polydrain that the trench is sealed with industrial grade concrete.
Interior Basement Waterproofing solutions may also include things like wall systems. Options are a 6 mil polyethylene vapor barrier which is tucked into the Polydrain and set up typically from floor to ceiling. For a cleaner look and for walls with a high moisture content Polywall, an extruded resin sheet could be set up. It is easy to clean, 100% waterproof and does not support mold, mildew or bacteria growth. For wall areas with high water content, like corners, problem areas or older construction, Polydrain may be set up complete wall or chest high. There are also commercial grade epoxy and polymeric acrylic coatings accessible.