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Celotex GA4075 75mm Insulation Board - 2.4m x 1.2m

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£39.44 Incl. VAT
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Celotex GA4075 is a high-performance multi-purpose insulation board that can be utilised in all sorts of applications, such as flat roofs, pitched roofs, solid floors and masonry walls as well as timber framed and steel framed systems. It's equipped with an innovative low emissivity foil facing and manufactured from rigid polyisocyanurate (PIR), so it's convenient and easy to cut and shape. This endlessly versatile insulation board boasts highly impressive thermal conductivity of 0.022 W/m.K for excellent thermal performance. So, it's able to easily meet the target U-value while being thinner than most similar products on the market.

And that's not all! The low emissivity foil facing dramatically improves thermal performance in sealed cavity air spaces, helping raise the potential U-value even further. The GA4075 is manufactured to the highest industry standards and approved by the BBA (British Board of Agrement) as fit for use in defined roof, wall and floor applications when installed, used and maintained as outlined in the certificate. In addition, the GA4075 comes with a BRE (Building Research Establishment) Green Guide Rating of A, which will help your environmental performance and provide reliable long-term energy savings for your home.

Features & Benefits: Celotex GA4075 75mm Insulation Board - 2.4m x 1.2m

  • High-quality PIR insulation board
  • Excellent thermal performance & reduced thickness
  • Lightweight, handy, quick & easy to install
  • Suitable for floor, roof and wall applications
  • Low emissivity foil facings for improved thermal insulation performance in cavity air spaces
  • BRE Green Guide Rating of A for sustainability
  • BBA certified
  • Compressive strength (kPa): CS(10\Y)140
  • R-Value: 3.40m2K/W
  • Maximum weight: 2.78kg/m2

Standards & Certification

  • Thermal conductivity: 0.022W/m.K, according to BS EN 13165 for factory made rigid polyurethane foam (PU) product
  • Spread of flame: Euroclass E Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.


Length 2400mm Thickness 75mm Width 1200mm


Material PIR Product Type Board Facing Foil Thermal Conductivity 0.022 W/mK
Edging Square Edge

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4.5 / 5 3 reviews
21st November 2021
Is great stuff
22nd October 2020
As good as any other products I have had to do the same job and a fair price to
winslow foot
29th March 2020
Seems to work well
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Celotex GA4075 75mm Insulation Board - 2.4m x 1.2m

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