Insulated Metal Panels (IMPs)

Insulated Metal Panels (IMPs) have a rigid methylene diphenyl diisocyanate (MDI)-based polyurethane foam core "sandwiched" between two metal facings. These factory-manufactured panels are used for building and other insulation applications. IMPs are used in building claddings, partitions, load-bearing walls and roofing elements. Insulated metal panels are also used in cold storage applications.

Because of their high thermal insulation values, ease of use, high degree of stability, rigidity and excellent load bearing capacity, IMPs are especially suitable for self-supporting roofs and walls, and other applications with structural requirements.

In Europe, INSPIRE® PIR insulation foam for sandwich panels has achieved the following fire resistance classifications, according to EN 13501-2:

  • EI 20 for 80 mm wall panels (EN 1364-1)
  • EI 30 and E 45 for 100 mm wall panels (EN 1364-1)
  • REI 30 and RE 60 for 100 mm roof panels (EN 1365-1)


  • Commercial and industrial buildings
  • Self-supporting roofs and walls
  • Commercial and residential entry and garage door panels
  • Commercial refrigeration
  • Refrigerated transport vehicles