Mack Wallace, P.E., has been a mechanical contractor, consulting engineer and a registered engineer in Texas for over 30 years. Now registered in over 40 states, Mack has been the engineer of record for many award-winning projects, including the Historic Preservation of the Texas State Capitol Building. He has also served on the review team for the energy efficient buildings research projects supported by the Energy Research in Applications Program for the Texas Higher Education Coordinating Board. Mack is heavily involved on the front lines of the energy conservation industry, having served the past 12 years on the ASHRAE Standard 90.1 committee. He also serves as the liaison between the mechanical and building envelope subcommittees, working with both committees to develop “whole-building approaches to energy savings and sustainable design.”

Joseph Deringer, AIA , LEED-AP , is President of The Deringer Group Inc. Joe Deringer has o ver 30 years’ experience in the analysis and design of sustainable, energy-efficient buildings worldwide. His work has been focused especially on energy codes, design assistance, training and the development of interactive design and training tools. He has over 20 years' involvement in developing energy codes for buildings. Joe also serve as an international energy and environmental consultant to the World Bank, UNDP and USAID, consulting on projects in over a dozen countries in Southeast Asia, the Caribbean, Latin America, the Middle East, and Eastern Europe.