Celotex XR4000 (25F)

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. The 200mm thick product positions Celotex as the manufacturer of the broadest range of product thicknesses from 12mm-200mm.

With low emissivity foil facings, XR4000 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).

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 110mm-200mm
• Provides the thickest PIR insulation available from stock within the market
• Achieves U-values with minimum thickness
• Helps meet the current and future requirements of the Building Regulations (Part L), BREEAM and The Code for Sustainable Homes
• Is easy to cut and shape
• Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces
• Provides reliable long-term energy savings for buildings
• Is available in a standard board size of 1200mm x 2400mm

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 thicknesses 50mm to 100mm see GA4000, for below 59mm see TB4000.