Xtratherm insulation PIR boards are an insulation material designed for multi-purpose use applications to improve the thermal performance within a residential or commercial building. The board size is 1200mm by 2400mm and come in a range of thicknesses from 25mm to 150mm. They provide a thermal conductivity of 0.022W/mK. The boards are made up of a fibre-free, rigid, polyisocyanurate core which is bonded to a several layers of low emissivity composite foil on each side of the board during the manufacturing process. The boards are lightweight and easy to cut, handle, and install.

They are made CFC and HCFC free with zero Ozone Depletion Potential and Zero Global Warming Potential. By installing insulation into your property, you are reducing the amount of heat escaping your home. By doing this you are helping to make changes by contributing to tackling climate change and global warming.

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The Xtratherm PIR boards are extremely durable and long lasting. When installed correctly following the relevant guidelines and building regulations the Xtratherm PIR insulation boards should achieve the same lifespan as the relevant buildings.

Key Features:

  • Easy to handle and Lightweight
  • High thermal performance and outstanding strength
  • Energy-efficient and sustainable solutions
  • Durable and long lasting
  • Wide range of thicknesses available
  • Fibre-free board
  • Zero ODP (Ozone Depletion Potential) and Zero GWP (Global Warming Potential)
  • Water-resistant: Yes
  • Fire-resistant: Yes
  • Compressive Strength: 140kPa
  • Multi-purpose application

Xtratherm thin-R range provides a thermal conductivity that is among the lowest. Xtratherm Thin-r boards are manufactured to strict dimensional tolerances, enabling the boards to be fitted tightly together. That reduces air leakage through the construction and associated heat losses through convection. Xtratherm Thin-r contains gas tight aluminium facings that form a low emissivity surface which, when facing a cavity reduces the heat loss through radiation, cutting the overall rate of heat loss. Xtratherm Thin-r excellent lambda value and therefore low thickness allows constructions to be thinner than they would be with other insulation material With the excellent thickness to performance ratio (R-value) of Xtratherm Thin-R less material is required to achieve the best performance levels asked for in the new building regulations.

Xtratherm PIR insulation boards can be installed in a range of methods. These methods include:

  • Floor insulation – below and above concrete applications
  • Wall Insulation – internal and external wall applications
  • Roof insulation – pitched roofs and flat cold roof applications

Safety/ Product Specifications:
Brand: Xtratherm
Length: 2400mm
Width: 1200mm
Thermal Conductivity: 0.022W/mK
Thicknesses Available: 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 75mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm
Core: Polyisocyanurate
Facings: Low emissivity foil


Xtratherm Thin-r is manufactured under ISO9001 assured quality system.