What does drainage matting do?
What does drainage matting do? What Is a Drainage Mat? A drainage board, or drainage mat, helps water flow away from the foundation. Without it, water can stay trapped against the concrete or pool at the bottom. Drainage mats come with a dimpled design that lets water accumulate and flow away, creating an air gap. What is a dimple mat used for? Dimpled drainage matting, placed between the vapor barrier and the ground, improves drainage and significantly enhances the durability of the liner. Think of dimpled drainage matting as a durable sub-floor between the liner and the gravel or dirt...