The next type of insulation we will be looking at is a specific type of Rigid Foam insulation. Rigid Foam insulation is just like it sounds in that rather than being soft and loose like the fiberglass or Tru-Soft it is a firm piece of foam that creates a structured board. This specific product is called SilverGlo and is is unique in that is possesses a similar quality to the Radiant Barrier- reflectivity.