Our SuperAttic Insulation System is designed to keep your attic cooler in the summer and prevent heat from leaking out in the winter. Both sides of this SilverGlo rigid board insulation has a reflective material known as radiant barrier that reflects the heat in the summer and maintains the warmth in the winter. The SuperAttic can help cool your attic down by 30 degrees! that is a huge help when trying to keep your home cool in the summer.