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ARDEX Polyiso Roofing Insulation

Closed-cell PIR Foam Insulation Board


The ARDEX Polyiso Insulation Board offers high-energy efficiency for which PIR boards are renowned. The ARDEX Polyiso board is suitable for adhered, ballasted and mechanically fastened single-ply roofing systems. It provides outstanding thermal resistance, dimensional and compressive strength. The lightweight, easy-to-handle insulation is suited for application onto steel roof, concrete or wood deck.


  • Thickness:
    38.1mm, 50.8mm and 58.4mm
    (please contact ARDEX for availability of other thicknesses)
  • Typical Uses:

    Used for insulation before application of ARDEX WPM 615 TPO membrane.

  • Substrates:

    Suitable for steel, concrete and wood deck substrates

  • Location:

    External roofing applications (covered)

  • Colours: Dark Grey
  • Type:

    Polyisocyanurate foam core

  • Dimensions:

    1.22m x 2.25m