The Xci 286 is an energy-efficient rigid foam insulation composed of a polyisocyanurate foam core manufactured online to glass fiber reinforced foil facers. The polyiso offers highest R-value per inch of any foam plastic board insulation. It is used for interior retrofit within existing buildings or It can be used in new construction. The Xci 286 is designed for exposed interior wall or ceiling use in commercial, residential, industrial, agricultural and metal building applications.