Dimpled Polyethylene Drainage Matting

Sika drainage mat 420 and 720 sika drainage mat 420 and 720 consist of an impermeable high flow dimpled polypropylene drainage core heat bonded to a layer of non woven polypropylene 420 or woven polypropylene 720 filter fabric on the top side and a polyethylene membrane protection film on the bottom side.

Dimpled polyethylene drainage matting.

Get an extra layer of moisture drainage and durability with crawl space drainage matting. The white cap dimple drainage matting rolls are made of a high density polyethylene hdpe that offers a strong resistance to hydrostatic pressure and excellent drainage. The dimples serve to quickly direct water to the footer drainage system and provide a chamber of air between. Matting has built in dimples that align both vertically and horizontally to rapidly channel water from grade to footer drainage system.

The stud shaped dimples provide an air chamber between the roll and its matting surface. It s high density polyethylene hdpe composition provides a good resistance to water pressure and aids in drainage. Think of dimpled drainage matting as a durable sub floor between the liner and the gravel or dirt crawlspace floor.