Its dimpled sheet provides outstanding drainage and physical protection over under-ground foundation walls. The nonwoven geotextile mat over the dimples creates a continuous air gap for reliable ventilation and drainage of water inflow from the surrounding soil. This composite system excels in a wide variety of other application sectors as well, including basements, underground parking grages, roof terraces, parking garage roofs, etc, providing users a variety of benefits.
- Permanent air gap, suspended particles in water are filtered out by the geotextile mat
- Excellent drainage performance
- Outstanding compressive strength (400kN/m2)
Walldrain products are resistant to a wide range of chemicals, impervious to root penetration, rot-proof and unaffected by soil bacteria and fungi.