ReyFlex is a line of insulation facers that address requirements for gas and moisture barrier while enhancing the durability and longevity of the polyiso foam insulation boards. It includes three products: ReyFlex Tri-Laminate Insulation Facer, ReyFlex Bi-Laminate Insulation Facer (a lower cost alternative to Tri-Laminate), and ReyFlex™ 20LB Bi-Laminate for Radiant Barrier.