If you’ve done all you can to improve the energy efficiency of your home and are still experiencing higher utility bills than you’d prefer, your garage may be the culprit.
Most homeowners know they can cut costs by making their homes more energy efficient. Doing the same for the garage is an afterthought — or is not thought of at all. Consider, though, that most garages are not heated. So especially during the cold season, the garage becomes yet another potential source of frigid air, separated from your living space in some cases by just drywall and a door.
A typical two-car garage measures 480 square feet, about 20 percent of the size of the average U.S. [...]