WALLcontrol^™ Polyiso Foil-Faced Insulation is a high-performance rigid wall insulation board with a high R-value, Class A foam core, and durable aluminum facers. It has a reflective, reinforced foil facer on one side and a white, reinforced, acrylic-coated, aluminum facer on the other side. Designed to be used as exterior continuous wall insulation, it can be adhered or mechanically attached. Available in 4 ft. x 8 ft. and 4 ft. by 9 ft. sizes, with thickness ranging from 1 in. to 4 in., and scored board options which are scored at 16 in. to 24 in.