Celotex XR4000

Celotex XR4000 is targeted at ‘cut-to-fit’ applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. XR4000 is also appropriate for use in floors and walls. Our 200mm thick product positions Celotex as the manufacturer of both the thickest and thinnest PIR insulation available.

With low emissivity foil facings, XR4000 is manufactured from rigid polyisocyanurate (PIR) uniquely using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a low global warming impact.

With Celotex XR4000 you are specifying an insulation board that:

• Is suitable for use in a number of applications including roof, wall and floor systems 
• Comes in thicknesses ranging from 110-200mm 
• Provides the thickest PIR insulation currently available within the market 
• Achieves U-values with minimum thickness 
• Meets the current and future requirements of the Building Regulations (Part L) and The Code for Sustainable Homes 
• Is easy to cut and shape 
• Includes low emissivity foil facings giving improved thermal insulation with cavity air spaces 
• Provides reliable long-term energy savings for buildings

Applications

Celotex XR4000 can be specified for use in a variety of applications including: 

• Pitched Roofs 
• Flat Roofs 
• Solid Masonry Walls 
• Timber Framed & Steel Framed systems 
• Floors

For full and detailed product information, please download the XR4000 product datasheet.