XtremeCorner® is a prefabricated, seamless corner intended to facilitate proper flashing of window and door sills. Sill corners are the most vulnerable areas of window and door systems and often the most difficult to properly detail and maintain water tight. XtremeCorners create a water tight, seamless corner that is easily integrated with standard self-adhered flashing. XtremeCorners are a key component of the Tamlyn® flashing and water management systems.

Window and door leaks are a major concern for builders, contractors and owners alike. To prevent water from entering the building, these critical areas must be flashed and properly integrated with your water management system. XtremeCorners provide a cost effective option that facilitate easier detailing of sills versus multiple flashing pieces or premium sill pan systems.

Explore the full range of Tamlyn’s water management solutions including XtremeCorner® Tape to enhance your building’s durability and performance.

Product Literature

Installation Instructions