When you ask architects today about some of their biggest challenges; and building enclosure design is usually at, or towards the top of the list. New and more stringent codes are requiring designers to have a deeper understanding of enclosure systems. High performance building designs are becoming essential to meet new code requirements, as well as the expectations of funding entities, owners, and developers. State-of-the-art building designs require high performance building materials and building enclosure systems. High performance materials must be efficient and versatile in use and in operation, as well as durable, resilient, and capable of protecting buildings and building occupants from weather extremes, natural and man-made hazards, and environmental concerns.