Rmax TSX-8500 is an energy-efficient thermal insulation board composed of a closed-cell polyisocyanurate (polyiso) foam core bonded to embossed, glass fiber reinforced aluminum foil facers on both sides. The exposed side of the board has a heavy embossed 12mil facer with an aluminum reflective surface and clear coating for limited protection against oxidation. The other side is marked in production to ensure proper installation.


  • Masonry walls
  • Exterior walls (Type I-IV)
  • Farm or storage buildings
  • Pre-engineered metal buildings
  • Parking structures
  • Laminate panels and other similar applications