If you’re like most of the US population of homeowners, your garage door is a simple steel door with little to no insulation. This style of garage door has one redeeming value; it is cheap. One selling point you won’t hear mentioned is that thin metal doors are great at insulating. In fact, this type of garage door turns into a massive radiator in the summer and a massive heat loser in the winter. Living in San Diego, where winters don’t truly exist, my concern was more with the giant radiator-effect our door has. It doesn’t help that our door is brown and subject to direct sun exposure in the afternoon. Last month, while prowling the countless exhibits of the 2012 National Hardware Show, a booth showing off a radiant barrier garage door insulation kit caught my attention. Read More