From Bob Best
Executive Vice President
Literally. According to the U.S. Department of Energy, up to 35% of the energy wasted in buildings is due to inefficient windows.
The degree to which a window allows heat loss or gain is based on many factors, including size, the type of glazing, the frame and how well-sealed the window is.
But buildings typically do not look as carefully at windows as they do building controls, fan systems, chiller plants and thermostats. The general thought is that the windows “are what they are,” so we work on other things we consider more “controllable.”
Consider this. The Empire State Building realized that by replacing over 6,500 double-pane windows with triple barrier windows would cut energy needs by 15%, actually saving more money than increasing the capacity of the HVAC systems. That’s what they did and the results are better than expected.
Looking for ways to reduce building energy consumption? The answer is clear.
Want to know more? Check out our book, Purchase: The Green + Productive Workplace.