Having attic storage room was important to this homeowner. Therefore, instead of blowing cellulose in the whole attic, we used our SilverGlo rigid foam insulation on a section of the floors and covered it with Oriented strand board (OSB). SilverGlo insulation board is a unique type of foam insulation that sets a new standard in this insulation category. When SilverGlo boards are made, they are infused with graphite powder to improve insulating value. Each board also has a reflective coating that acts as an effective radiant barrier.