Patent ID: 6990775
Filing Date: 2006-01-31
Classification: E04B,Y10T

Abstract:
1. A product adapted to allow drainage of moisture from a wall of a structure, comprising: a sheet of corrugated material forming a plurality of ridges and grooves on opposite sides of said sheet of corrugated material, said sheet of corrugated material being relatively inflexible under a force applied generally perpendicular to said sheet, said sheet of corrugated material having a multiplicity of perforations; and a sheet of material affixed to one side of said sheet of corrugated material, said sheet of material being water permeable; said product being flexible in a direction along said plurality of ridges and grooves allowing said product to be stocked in roll form; wherein said sheet of material affixed to one side of said sheet of corrugated material extends beyond said sheet of corrugated material a distance allowing said sheet of material to be wrapped under an edge of said ridges and grooves.