Roger Chang has been involved in the design and research of high-performance buildings for over a decade. His work includes research at MIT on ice rink air quality, natural ventilation, and double-skin facades. He has led mechanical design on dozens of LEED projects, including the Syracuse Center of Excellence, modernizations to the State Department headquarters in Washington DC, and performing arts centers in Florida, California, and Colorado. He is currently an energy and engineering leader for DLR Group, a national integrated design firm. Mr. Chang is a licensed professional engineer, LEED AP, and ASHRAE Building Energy Modeling Professional.