Radiant barrier sheathing, a fairly new improvement in construction technological innovations that is available from top national as well as worldwide makers of building products, is typically a roof construction material or a wall construction material which additionally can serve as an energy economizing insulation system. Proven and trustworthy in its composition, radiant barrier sheathing is made up of top quality oriented strand board or plywood which is actually laminated on one side with specialized construction grade aluminum foil as well as Kraft paper. This will allow for it to deflect heat during the summer, lowering attic temperatures (if installed on the roof) and in turn enable inhabitants to cut down on the utilization of air conditioning.