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25mm Celotex TB4000 PIR Insulation Board

25mm Celotex TB4000 PIR Insulation Board
Product Code: A10-112
Brand: Celotex
Model and Size: TB4000 - 2400x1200 (2.88m2)
Coverage: 2.88m2
Delivery Time: 1 - 2 days
Price: £12.57 (£15.08 inc VAT)

10 or more - £12.36 (£14.84 inc VAT)
20 or more - £12.16 (£14.59 inc VAT)
30 or more - £11.85 (£14.22 inc VAT)
   - OR -   


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Board Size: 1200mm x 2400mm (2.88m2)
Thermal conductivity: 0.022 W/mK
R-Value: 1.10m2K/W
Compressive strength: ≥120kPa
Water vapour resistance: >150 MNs/g
Surface spread of flame: Class 1
Board weight: 2.45kg (0.85kg/m2)
Celotex TB4025 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. TB4025 is also appropriate for use in floors and walls. With low emissivity foil facings, TB4025 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).
Celotex TB4025 can be specified for use in a variety of applications including:
  • Pitched Roofs
  • Flat Roofs
  • Solid Masonry Walls
  • Timber Framed & Steel Framed Systems
  • Floors
Celotex TB4025 characteristics:
  • specifically designed to eliminate thermal bridges
  • comes in thicknesses ranging from 12-45mm, making it the thinnest PIR insulation
  • available, in a standard board size of 1200mm x 2400mm
  • suitable for use in a number of applications
  • 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
  • Celotex TB4025 is CFC/HCFC free
  • has zero ODP and low GWP and CE marking compliance to BS EN 13165.
  • Celotex TB4025 is manufactured in accordance with quality management system ISO 9001 and environmental management system ISO 14001.
  • Celotex TB4025 achieves an ‘A+’ rating when compared to the BRE Green Guide 2008. All products must be installed in accordance with instructions issued by Celotex.
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