Radiant barriers (also known as reflective insulation) are a type of thermal insulation that inhibits heat transfer by thermal radiation. They first gained prominence when they were used during the Apollo Space Mission to reduce the radiant heat from the sun by 95%. After that inaugural mission, radiant barrier became a Space Foundation Certified Space Technology and was inducted into the Space Technology Hall of Fame in 1996. Since that time, the benefits of radiant barriers have now mostly been felt in everyday citizens’ homes to dramatically reduce their utility costs. In fact, our largest market is related to saving utility costs for residential homes and commercial buildings. The majority of your home’s heat gain and loss occur through the energy transfer in your attic space: An attic space is heated in the summer months by thermal radiation from the sun (radiant heat). The shingles on a roof absorb the heat from the sun, and then transfer this heat (conduction) to the attic space below. This heat is then radiated from the roof decking into the attic space and subsequently into your living space below resulting in increased temps and added strain on your AC units struggling to maintain a comfortable and consistent temperature.