Drainage Dimpled Sheets

It is dimpled structure drainage and underground insulation protection board., made of high density polyethylene(HDPE), has high compressive strength, resistant to plant roots and chemicals. Product description Serves as a protection layer throughout backfill work and prevents below-grade water from penetrating the structure. Allows for vertical and horizontal installations. Mainly used for the following applications: underground structures, basements and retaining walls, tunnels, underground car parks.