Dimpled Polyethylene Drainage Matting

A dimple mat is a sheet of semi rigid plastic usually high density polyethylene that comes in a roll.

Dimpled polyethylene drainage matting.

The dimples serve to quickly direct water to the footer drainage system and provide a chamber of air between. Whitecap drainage matting improves water movement due to the dimpled design and may enhance the effectiveness of a radon system. Get an extra layer of moisture drainage and durability with crawl space drainage matting. Matting has built in dimples that align both vertically and horizontally to rapidly channel water from grade to footer drainage system.

Think of dimpled drainage matting as a durable sub floor between the liner and the gravel or dirt crawlspace floor. The plastic has an egg carton shape with protruding dimples that make the membrane fairly thick generally between 1 4 inch and 1 2 inch thick. The stud shaped dimples provide an air chamber between the roll and its matting surface.