Celotex 90mm Thermaclass Full Fill Cavity Wall 21 PIR Board 1190mm x 450mm - 96 Sheets (51.4m2)

The Celotex 90mm Thermaclass Full Fill Cavity Wall 21 PIR Board (1190mm x 450mm - 96 Sheets, 51.4m2) is designed for use in full fill cavity wall applications, providing outstanding thermal efficiency with a thermal conductivity of 0.021 W/mK. Each board is lightweight, easy to cut and measures 1190mm x 450mm, making installation straightforward and reducing waste on site. With an R value of 4.25 m2.K/W, these boards deliver excellent insulation performance, helping projects meet strict U-value targets. The low emissivity foil facing enhances thermal efficiency, and boards can be installed either with a residual cavity of up to 10mm or as a complete full fill solution. BBA certified for proven quality and compliance, this product should not be used in external walls of buildings over 11 metres in height.

Features & Benefits:

• 90mm PIR board with thermal conductivity of 0.021 W/mK for superior insulation
  
• R value of 4.25 m2.K/W ensures excellent resistance to heat transfer
  
• Low emissivity foil facings improve energy efficiency in cavity wall systems
  
• Lightweight 1190mm x 450mm boards make handling and fitting easier
  
• Can be installed full fill or with up to a 10mm residual cavity for flexibility
  
• Supplied in packs of 96 sheets (51.4m2 coverage) for larger projects
  
• BBA certified to guarantee compliance and quality performance
  
• Not suitable for use in external walls of buildings over 11 metres high