Roger is a Principal Engineer in the Codes and Standards group at NORESCO, in Boulder, Colorado. Roger is a long time energy modeler, who’s recent focus has been on advancement of energy, sustainability and indoor air quality standards, and developing energy code compliance tools. Specifically, he is the technical lead for NORESCO’s development of CBECC-Com, the approved tool for showing compliance with the performance path of California’s Title-24 energy code. He is also active with ASHRAE standards development and is a member of the committees developing Standard 189.1, the standard for green commercial buildings, and Standard 62.1, ‘Ventilation for Acceptable Indoor Air Quality.’