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SKU: PL4025

37.5mm Celotex PL4000 PIR Insulated Plasterboard - 2400mm x 1200mm

37.5mm
52.5mm
62.5mm
72.5mm
77.5mm
£46.62 Ex VAT
£55.94 Inc VAT

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Thickness: 37.5mm

Size: 2400mm x 1200mm

Coverage: 2.88m²

Material: Polyisocyanurate (PIR)

Description
37.5mm Celotex PL4025 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.
  • 2400mm x 1200mm x 37.5mm.
  • This board allows for the installation of both the insulation and plasterboard in one operation, thereby reducing installation time.
  • Suitable for both direct bonding (‘dot and dab’) and mechanically fixed installation techniques.
  • Maximum flexibility and installation speed due to the tapered edge plasterboard.
  • Reliable long-term energy savings for buildings.
  • Suitable for both new build and refurbishment projects.
  • Can be easily used to upgrade to current building regulation standards.
  • Can be used in pitched roof, flat roof and wall applications.
Thickness: 37.5 mm
Length: 2400 mm
Width: 1200 mm
Coverage: 2.88 m²
R-value: 1.2 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.

Frequently asked questions
What is Celotex Insulated Plasterboard?

Celotex is a high-performance insulated plasterboard consisting of a rigid Polyisocyanurate (PIR) insulation core bonded to a tapered edge plasterboard. This 2-in-1 product allows you to insulate and plaster in a single operation, significantly reducing installation time. It is ideal for walls, pitched roofs, and flat roofs in both new-build and refurbishment projects.

What installation methods can be used with insulated plasterboard?

Insulated plasterboard can be installed using two main methods:

  • Direct bonding (“dot and dab” with adhesive)
  • Mechanically fixed (using battens or appropriate fixings)

The tapered edge plasterboard allows for easy jointing and a smooth finish. It is suitable for both direct-to-stud and masonry wall applications. Always follow the manufacturer’s installation guidelines and ensure the boards are fixed securely.

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37.5mm
52.5mm
62.5mm
72.5mm
77.5mm