River wash gravel is placed in the drain trench to aide in water stream. We then install Polydrain, an air-gap tech drainage board in the cove place in which the foundation wall meets the cellar floor. This heavy duty constructed drainage matting is bent and placed the wall up and above the trench. It raises 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.

Severna Park Interior Basement Waterproofing solutions may also include wall systems. Options are a 6 mil polyethylene vapor barrier that’s tucked into the Polydrain and installed typically from floor to ceiling. For a cleaner look and for walls using a high moisture content Polywall, an extruded resin sheet could be installed. It is easy to clean, 100% waterproof and does not support mold, mildew or bacteria growth. For wall regions with high water content, such as corners, problem areas or older structure, Polydrain may be installed full wall or chest elevated. There are also commercial grade epoxy and polymeric acrylic coatings available.