Atlas EnergyShield is a high-performance continuous insulation board composed of a closed-cell polyisocyanurate foam core with tri-laminate reflective aluminum foil facers. It is manufactured using environmentally responsible processes and formulations, containing no CFCs, HCFCs or HFCs, resulting in Zero Ozone Depletion Potential (ODP) and Negligible Global Warming Potential (GWP). EnergyShield is GREENGUARD Gold certified and contributes to LEED credits.