Call us on 01202 785200


Flat roofing insulation | Evatherm D

Evatherm D

Evatherm D is a high performance rigid polyisocyanurate (PIR) foam board with plywood topping, for use in warm flat roofs under built-up felt and approved single-ply membrane waterproofing systems.

Evatherm D is a closed cell, CFC and HCFC-free (zero ozone depletion), rigid polyisocyanurate foam core faced, both sides with a multi-layer coated aluminium foil. A layer of 6mm WBP plywood is then bonded to the insulation board giving additional strength and rigidity to provide a suitable substrate for partially bonded built up waterproofing systems. The board has exceptionally low thermal conductivity of 0.022 W/mK.


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

Call us on 01202 785200