Patent ID: 8695293

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 first sill pan flashing base section 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, the lengthwise oriented front sill support comprising a plurality of lengthwise oriented support pedestals; and a second sill pan flashing base section 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, and a first extension coupler placed over the first end of the first sill pan flashing base section and the second end of the second sill pan flashing base section, the first extension coupler comprising a base section comprising a rear support and a front support, the base section having a rear portion and a front portion, a rear wall overlap along the rear portion of the base section, and a front lip overlap along the front portion of the base section, the first extension coupler comprising recesses to engage the plurality of lengthwise oriented support pedestals of the first sill pan flashing base section; 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.