Posted on April 28,2015 by Peterbilt in Add a floor above
**Air leaks waste a lot of energy.**
Air leaks not only mean significant heat loss, but they also can let moisture into the house. Years of testing and field experience indicate that many houses share design or building flaws that allow heat to enter or leave the building and increase the cost of heating and cooling. The EPA's Energy Star program calls these "thermal bypasses," and has compiled a list of the most common ones into a thermal bypass checklist. Using the checklist can help you get the most bang for your air-sealing buck.