River wash gravel is put in the drain trench to aide in water flow. Then we install Polydrain, an air-gap tech drainage board in the cove area where the foundation wall meets the basement floor. This heavy duty built drainage matting is bent and put the wall up 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 this Polydrain that the trench is sealed with commercial grade concrete.

Annapolis Interior Basement Waterproofing solutions can also include things like wall systems. Options are a 6 mil polyethylene vapor barrier that’s tucked in the Polydrain and installed normally from floor to ceiling. To get a cleaner appearance and for walls with a high moisture content Polywall, an extruded resin sheet could be installed. It’s easy to wash, 100% waterproof and does not support mold, mould or bacteria development. For wall regions with higher water content, such as corners, problem areas or old construction, Polydrain can be installed full wall or chest high.