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Flat roofing insulation | Evatherm A

Evatherm A

Evatherm A is a fully adhered, high performance, rigid polyisocyanurate (PIR) foam board for use in warm flat roofs under EVA single-ply membrane waterproofing systems.

Evatherm A is a closed cell, CFC and HCFC-free (zero ozone depletion), rigid polyisocyanurate foam core faced, both sides, with a perforated mineral coated glass fibre tissue. It has an exceptionally low thermal conductivity of 0.025 W/mK.


  • Wide range of thicknesses
  • Low thermal conductivity
  • Reduced risk of condensation
  • Rot proof, durable and maintenance free
  • Lightweight and easy to cut
  • Available in tapered format
  • Manufactured to ISO 9001

Call us on 01202 785200