Welcome to radiantbarrierphoenix.net where we bring you the very best information on radiant barriers, how they work and why the are an important element in the energy saving puzzle. Essentially what a radiant barrier does is keep radiant energy from the sun from heating up your house or business. It does this through a special property called emissivity, the same property that low-e windows utilize to keep the heat out. This is different from reflectivity but we will cover that in another page here, but suffice it to say that the more energy we can keep out of our houses in Phoenix in the summer, the easier we will be able to keep them cool and the lower our energy bills will be. Check out more on radiant barriers.