“Energy-efficient windows will save homeowners money and offer peace of mind. Such windows reduce heating and cooling loads on the home, which in turn reduces the required size of the heating and cooling systems. Consequently, both fixed and operating costs decrease.” – ECHO engineers, Team Ontario In the first part of our interview with Team Ontario, we learned about their success at U.S. Solar Decathlon 2013. Here, in part two of that interview, we asked the team to share their perspective on energy-efficiency as it applies specifically to windows and doors. JW: What elements contribute to making a window energy efficient? TO: Within the industry you will commonly hear of three main criteria that affect a window’s energy efficiency: Insulating capability – how well the window performs at keeping heat inside the home during the winter (heating) season and keeping heat outside the home during the summer (cooling) season. This is…