XtroWall is an innovative Xtratherm partial fill wall insulation system with robust facings, engineered jointing details, preformed corners and a certified lambda of
0.021W/mK. When built to the acceptable details in a 150mm cavity, XtroWall achieves a Passive U-value of 0.15W/m2K with excellent thermal bridging details.

BS EN ISO 9001 Quality Management Systems
BS EN ISO 14001 Environmental Management Systems

Thin-R PIR achieves an A+ rating under the BRE Green Guide.


BBA Certified Thermal conductivity: 0.021 W/mK
Facings: Robust Foil Facing
Core: Modified Rigid PIR Foam
Board size: 1200mm x 450mm
Thickness: 80mm, 100mm  and 110mm
Board Profile: Rebated
Preformed Corner: Yes


Key Points

  • Advanced Engineered Detailing
  • Robust Facings
  • Excellent Thermal Bridging Y-Value
  • 0.15 U-Value in 150mm Cavity
  • Certified performance and calculations
  • High Thermal Performance Rigid Insulation
  • Easy to Install
  • Non-deleterious material



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Xtratherm accepts no responsibility for errors or omissions on the website.