The Windows and Envelope Materials Group conducts research, development and demonstration projects to reduce the energy-related impacts of building envelopes, for both new and existing buildings, in all climates. The scope includes R&D on new technologies and systems, extensive lab and field performance testing and development of new simulation tools to predict properties and energy impacts. Projects are targeted to assist manufacturers and suppliers in developing the next generation of highly efficient solutions, and to guide designers, specifiers and building owners in selecting the most appropriate efficiency solutions for their homes and buildings.

Improved technologies and better design and operations strategies for windows and façade systems can convert windows from energy losers to net energy suppliers, while providing comfort and view.
New Solutions to cool buildings, cities and the planet by making roofs, walls, pavements and cars cooler in the sun.