Patent attributes
A construct for making a drainage device for a basement waterproofing system is made from a sheet of waterproof material with two generally parallel sides. A series of longitudinal slots is provided parallel to one of the sides, and a series of tabs that fit in the slots is provided along the other side. The bottom surface is scored to provide a series of fold lines to facilitate folding the construct into a rectangular tubular shape, with the tabs fitting into the slots to hold the shape. Perforations are provided in the device to allow water to flow easily through three of the sides of the device when folded to its rectangular tubular shape. A portion of the device may be folded upward to cover the lower portion of a building wall, or a separate piece may be used to bridge the gap between the device and the wall.
