Insulation & Metal Interior Finish - Thermax™ | DuPont
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Insulation & Metal Interior Finish - Thermax™ | DuPont

  • Available in

  • Use

    Insulation and interior finish systems
  • Applications

    Walls in metal buildings and standing seam metal roofs
  • Characteristics

    Easy to cut, handle, and install, long-term thermal resistance
  • Sizes

    48" x 96", 48" x 120" in typical thicknesses of 0.5", 0.75", 1.0", 1.75", 2.0", 2.5", 3.0", 3.5", 4.0"
  • Certification

    Complies with ASTM Type I, Class 2
  • Guarantee

    20 years
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More about this product

The DuPont Thermax™ product line is a systematic approach to achieving efficiency at every level: simplified design, streamlined construction and optimized energy consumption for a reduced carbon footprint.

DuPont Thermax™ Metal Building Boards are easy-to-install and ideal for metal structures as well as for standing seam metal roofs. They provide both insulation value and an interior finish system for walls in metal buildings as well as standing seam metal roofs.

The board consists of a polyisocyanurate foam core with 1.25-mil embossed aluminum facers on both sides and has a Sound Transmission Classification of 15. The facers help prevent water and water vapor intrusion into the insulation foam, allowing it to stabilize at a higher R-value for high, long-term thermal resistance.


  • Easy to cut, handle, and install
  • Helps reduce the potential for condensation within the wall assembly
  • Manufactured utlizing halogen-free flame retardants
  • Zero ozone-depleting potential
  • Long-term thermal resistance
  • R-Value of 6.6 at 1" thickness

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