Drainage of water is a critical issue in the design and construction of a structure. Without proper drainage, hydrostatic pressure can result in water infiltrating the structure, or worse yet, cause structural damage. With below-grade structures, Aquadrain will collect and channel water away from the structure. For split-slab deck construction, Aquadrain provides an avenue for water to flow to drains at the level of the waterproofing membrane beneath the topping wearing surface. In cold climates, this subsurface deck drainage can reduce the risk of possible freeze thaw damage to the wearing surface.