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Celotex GA4000 Insulation Board
From £26.38 inc VAT

Celotex GA4000 Insulation Board

Please be aware of the current supply shortage of "MDI" the main constituent of PIR insulation. Unfortunately, this is expected to impact PIR availability nationally for the coming months. 

Please call to check stock or for further details. 

Celotex GA4000 is a general purpose insulation board for floors, walls and roofs. It has long been at the heart of the Celotex product range providing the user with a range of thermal insulation solutions.

With low emissivity foil facings, GA4000 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 GA4000 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 50mm-100mm
  • 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


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

Need a different size?  

12mm - 40mm  Celotex TB4000

50mm - 100mm Celotex GA4000

110mm - 150mm Celotex XR4000

From £26.38 inc VAT £21.98 ex VAT per Board
Code Description Unit Price (inc VAT) Quantity
285260500 50mm x 1200mm x 2400mm GA4050 Board £26.38
285260600 60mm x 1200mm x 2400mm GA4060 Board £33.41
285260700 70mm x 1200mm x 2400mm GA4070 Board £38.16
285260750 75mm x 1200mm x 2400mm GA4075 Board £38.88
285260800 80mm x 1200mm x 2400mm GA4080 Board £43.80
285260900 90mm x 1200mm x 2400mm GA4090 Board £48.48
285261000 100mm x 1200mm x 2400mm GA4100 Board £48.90

Delivery Information

  • Free delivery on orders over £200 or £20 charge applies
  • Deliveries will usually be made within 2 working days
  • We will require a signature on delivery
  • We could deliver your order on large vehicles needing good access. Please advise us in the comments in your order
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Technical Information

Health & Safety datasheet-June 2010 pdfHealth & Safety datasheet-June 2010 (100kb) Celotex-GA4000-Product-Datasheet-Jan-13 pdfCelotex-GA4000-Product-Datasheet-Jan-13 (219kb)
For further details on this product please contact us