Atlas EnergyShield Pro is composed of a Class A closed cell polyisocyanurate (polyiso) foam core faced with a reflective reinforced foil facer on one side and a white reinforced acrylic-coated aluminum facer on the other. The blowing agent used to produce the polyiso foam core does not contain any CFCs, HCFCs or HFCs. EnergyShield Pro has zero Ozone Depletion Potential (ODP) and negligible Global Warming Potential (GWP). EnergyShield Pro combines high R-value, Class A foam core, durable aluminum facers and water resistive barrier attributes in a high performance rigid wall insulation. EnergyShield Pro is designed to be used as exterior continuous insulation (CI) or may be reversed for interior applications for interior walls only or ceilings only where a clean white surface is desirable. Applicable Standards: ICC-ES A12, ASTM C 518, ASTM 1289 Type I Class 1 and Type I Class 2, ASTM E2357, ASTM E84, UL Listed, ANSI/UL 263 (E119), NFPA 285, NFPA 286, PE Evaluation, International Building Code (IBC), International Residential Code (IRC), ICC-ES ESR-1375, ASHRAE 90.1 / ASHRAE 189.1 / IECC / IGCC Continuous Insulation Standards, IECC & ASHRAE 90.1, California Approved Insulation Registry T 1231, GreenGuard Gold Certification, RCI Approved, AIA Approved, U.S. Green Building Council Member, National Roofing Contractors Association