Patent ID: 6401402
Filing Date: 2002-06-11
Classification: E06B

Abstract:
A flashing system for preventing intrusion of water and air around windows, doors, and other through wall penetrations comprising:a plurality of pre-folded clay coated polyethylene sheet flashing components sequentially installed in a building rough opening having a sill portion, jamb portions and an interconnecting header portion; each of said pre-folded clay coated polyethylene sheet flashing components having a flat horizontal portion with an integral upwardly turned rear flange portion and a downwardly turned forward flange portion formed by folds and a uniquely formed corner dam portion with a short upwardly turned jamb portion and a corresponding flange portion; said corner dam portion formed by a plurality of folds resulting in a leak-proof fold at the point of intersection of said sill and jamb portions; whereby said plurality of pre-folded coated polyethylene flashing components are utilized in an overlapping sequence to completely flash a rough opening against water and air intrusion prior to the installation of a closure member in said rough opening.