Manufactured with enhanced Class A polyiso replacing ECOBASEci™

Rmax ECOMAXci® Ply is a composite product of polyiso insulation with inorganic, polymer coated glass fiber mat facers bonded to 5/8” or 3/4” fire retardant treated plywood (FRTP). This insulation has been tested for multiple NFPA 285 assemblies and is approved for use in exterior walls of buildings of any height.


  • Exterior walls (Type I-IV)
  • Masonry walls
  • Steel stud walls