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Eco-Fix is now unavailable via EcoTherm Insulation.

Please see our flat roof insulation page to view our current product range.



Eco-Fix - Insulation for flat roofs

Rigid PIR thermal insulation for use beneath mechanically fixed waterproofing membranes on metal, timber or concrete decks.



Suitable for use in new build or upgrading the thermal performance of existing roofs, providing a cost effective means of reducing CO2 emissions and compliance with Building Regulations/Standards.

Eco-Fix is ideal for mechanically fixed single ply waterproofing systems and is EcoTherm's highest thermally performing flat roof insulation board.



EcoTherm® Eco-Fix comrpises a fibre free rigid polyisocyanurate (PIR) insulation core faced with aluminium foil composite on both sides. It is suitable for use with most mechanically fixed single-ply waterproofing systems. 

Standard Dimensions

Length: 2400 mm
Width: 1200 mm
Area: 2.88 m2
Thickness: 25 - 200mm

Thermal Performance

The thermal conductivity (lambda / λ value) of Eco-Fix is 0.022 W/mK 


Eco-Fix benefits:

  • EcoTherm's best thermally performing flat roof insulation board
  • BBA Certified
  • Light weight boards are easy to handle, simple to install and won't weigh down the structure
  • Easily meets the requirements of all UK Building Regulations with minimal thickness
  • Large format boards cover areas quickly
  • Cost effective and out performs traditional insulation materials

EcoTherm tapered insulation boards create falls on flat roofs, reducing the risk of water ponding by channeling water to drainage outlets.  They offer time and cost saving advantages over other means of creating falls and often eliminate the need for structural falls.  To find out more visit the Tapered Flat Roof Insulation page.