Patent ID: 8117789

Claim:
A sill pan flashing system to protect the rough opening of a window or door from water intrusion, the sill pan flashing system comprising a rough opening comprising a bottom, a first side, and a second side; a sill pan flashing comprising a sill pan flashing base positioned in the bottom of the rough opening, the sill pan flashing base comprising a first end, a second end a sloped upper portion, a rear wall, a front flange, a lengthwise oriented rear sill support, and a lengthwise oriented front sill support comprising a plurality of drain gaps, a first end piece comprising an end piece base having a top surface, a bottom surface, a first side edge, a second side edge, a rear edge, and a front edge, such that the end piece base is attached to the sill pan flashing base in the proximity of the first end of the sill pan flashing base, a side upward lip projecting from the top surface of the end piece base along the second side edge, the side upward lip extending from the front edge to the rear edge of the end piece base such that the side upward lip is in proximity to a first side of the rough opening, a downwardly extending front lip projecting from the top surface of the end piece base along the front edge, the downwardly extending front lip extending from the first side edge to the second side edge of the end piece base, and a corner side flange attached to the first side of the rough opening; and a second end piece comprising an end piece base having a top surface, a bottom surface, a first side edge, a second side edge, a rear edge, and a front edge, such that the end piece base is attached to the sill pan flashing base in the proximity of the first end of the sill pan flashing base, a side upward lip projecting from the top surface of the end piece base along the second side edge, the side upward lip extending from the front edge to the rear edge of the end piece base such that the side upward lip is in proximity to a second side of the rough opening, a downwardly extending front lip projecting from the top surface of the end piece base along the front edge, the downwardly extending front lip extending from the first side edge to the second side edge of the end piece base, and a corner side flange attached to the second side of the rough opening; and a window or door with a window or door sill supported by the lengthwise oriented rear sill support and lengthwise oriented front sill support of the sill pan flashing.