How does reflective foil insulation and radiant barriers work?
In order to understand how reflective foil insulation and reflective foil radiant barrier work, it is important to understand the reflective properties of pure aluminum. Pure aluminum, with the exception of gold and silver is the most reflective material on earth. Aluminum naturally reflects 97% of radiant heat or radiant energy. If your goal is to stop the transfer of radiant heat, reflective foil insulation is the only insulation material to achieve this.
