Thin-R Partial Fill Cavity Wall [XT/CW]

Xtratherm Thin-R Partial Fill Cavity Wall  XT/CW is CFC/HCFC free, manufactured using a blowing agent that has zero ozone depletion potential (ODP)

Manufactured in accordance with BS/IS EN 13165  Thermal insulation products for buildings. Factory made Rigid Polyurethane Foam (PUR) products. Specification.

BS EN ISO 9001 Quality Management Systems
BS EN ISO 14001 Environmental Management Systems
BS OHSAS 18001 Health & Safety Management Systems

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


Available in UK & Ireland Only



BBA Certified Thermal conductivity: 0.022 W/mK
Facings: Low Emissivity Composite Foil Facings
Core: Rigid PIR Foam
Board size: 1200mm x 450mm
Board Profile: Tongue & Groove or Square Edge
Preformed Corner: Yes


Key Points

  • High Thermal Performance Rigid Insulation
  • Easy to Install
  • Suitable for new build and refurbishment
  • Non-deleterious material
  • Clear cavity is maintained
  • Low Emissivity Foil Facings to increase thermal resistance of cavity
  • Robust Engineered Jointing Detail
  • Avoids Potential Default Factor For Heat Loss At Joints
  • Certified Lambda Value as low as 0.022 W/mK
  • Reduces Thermal Bridging
  • Closed cell structure – moisture resistant



Xtratherm reserves the right to change this information without notice.
Xtratherm accepts no responsibility for errors or omissions on the website.