140mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 4)

140mm Celotex Thermaclass Cavity Wall 21 is a high performance rigid PIR full fill cavity insulation board with low emissivity foil facings offering enhanced thermal performance (0.021 W/m.K) within cavity air spaces. It can be installed with up to a 10mm residual cavity or as a full fill solution with no residual cavity. Celotex Thermaclass Cavity Wall 21 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).

APPLICATION

• Full fill cavity insulation,
• Can be installed with up to a 10mm residual cavity

• Excellent thermal performance, 
• Lightweight and easy to install,
• Tongue and groove for easy installation,
• The boards are sized to fit standard cavity wall tie spacing,
  
• Can be used up to 18 metres height (England and Wales),
• Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces,
  
• Has excellent dimensional stability,
• Provides reliable long term energy savings for buildings.

• BBA certified, 
• Euroclass E Reaction to Fire classification, according to BS EN 13501-1,
• Manufactured under Environmental Management System ISO 14001:2015,