River wash gravel is put in the drain trench to aide in water stream. Then we install Polydrain, an air-gap technology drainage board at the cove area in which the foundation wall meets the basement floor. This heavy duty built drainage matting is bent and put up the wall and over the trench. It increases water and directs intruding water because of hydrostatic pressure to the subgrade tile program. Following the installation of the Polydrain the trench is sealed using industrial grade concrete.
Fairfax Interior Basement Waterproofing solutions can also include wall systems. Alternatives are a 6 mil polyethylene vapor barrier which is tucked into the Polydrain and set up normally from floor to ceiling. To get a cleaner appearance and for walls using a high moisture content Polywall, an extruded resin sheet can be set up. It is not difficult to wash, 100% waterproof and doesn’t support mold, mould or bacteria development. For wall areas with high water content, such as corners, problem areas or older structure, Polydrain can be set up complete wall or chest elevated. There are also commercial grade epoxy and polymeric acrylic coatings accessible.