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140mm Celotex XR4140 PIR Insulation Board 2400mm x 1200mm

£62.72

The innovative low emissivity foil facing improves thermal performance in sealed cavity air spaces and boosts the potential U-value.

The XR4140 has been designed to the highest industry standards, with a BBA (British Board of Agreement) seal of approval as fit for use in defined roof, wall and floor applications when installed, used and maintained according to the guidelines in the certificate.

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Thickness140mm
Size2400mm x 1200mm
Coverage2.88mu00b2
MaterialPolyisocyanurate (PIR)
Thermal Conductivity0.022W/mK
Reaction to FireEuroclass F Reaction to Fire BS EN 13501-1
What is PIR material, and why is it used in insulation?
Can I use the GA4000 for both internal and external insulation?
How do I install the GA4000 insulation board?
Is the GA4000 insulation board eco-friendly?
How does the GA4000 compare to other insulation materials in terms of thermal performance?
Do I need any special tools or equipment to install the GA4000?
How long does the GA4000 insulation board last?
Is the GA4000 fireproof?

140mm Celotex XR4140 is a versatile multi-purpose insulation board.

It is suitable for all sorts of applications including pitched roofs, flat roofs, solid floors and masonry walls and steel framed and timber framed systems.

It is easy to handle, cut and shape.

This high-performance insulation board delivers outstanding thermal performance.

It meets the required U-value even though it’s thinner than most similar products on the market.

  • Can be used in floor, roof and wall applications.
  • Low emissivity foil facings for improved thermal insulation performance in cavity air spaces.
  • Excellent thermal performance & reduced thickness.
  • Lightweight, rigid and easy to install.
  • BBA certified.
  • BRE Green Guide Rating of A for sustainability.

The innovative low emissivity foil facing improves thermal performance in sealed cavity air spaces and boosts the potential U-value.

The XR4140 has been designed to the highest industry standards, with a BBA (British Board of Agreement) seal of approval as fit for use in defined roof, wall and floor applications when installed, used and maintained according to the guidelines in the certificate.

The XR4140 has a BRE (Building Research Establishment) Green Guide Rating of A, which will help improve your environmental performance.

All in all, this PIR insulation board will provide substantial long-term energy savings for your home.

Thickness: 140 mm
Length: 2400 mm
Width: 1200 mm
Coverage: 2.88 m²
R-value: 5.90 m²K/W
Thermal conductivity: 0.022 W/mK
Certification: BA 16/5352 BBA  17/5405
Country Origin: UK


The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is.

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