Call our Team on 0115 6976 800

Celotex  |  SKU: PL4025

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

£35.53 Ex VAT
£42.64 Inc VAT

This Celotex PL4025 PIR insulated plasterboard is a PIR-backed sheet of plasterboard ideal for insulating lofts and flat roofs.

Nationwide Delivery in 3-5 WORKING DAYS

  • £40 ex VAT Delivery
  • FREE DELIVERY OVER £500

Need a next-day or named day delivery? Call Us.


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.

  • Size
    2400mm x 1200mm
  • Coverage (m²)
    2.88
  • Thickness
    37.5mm
  • Material
    PIR

Do You Ship to My Address?

We deliver to most mainland UK addresses. If you are in one of the areas listed below and are unable to checkout, please give us a call to put together a custom quote.

Northern Ireland (BT), Isle of Wight (PO30-37), Isle of Man (IM), Scottish Highlands and Orkney Isles (PA, ML, EH, KA, G, KY, PH, DD, AB, IV, KW), Outer Hebrides and the Shetland Isles (HS, ZE) will incur additional charges and may also experience delivery delays.

How Much Will My Delivery Cost?

You can work out the cost of delivery on your order before checkout by heading to our Delivery Info page.

How Long Will Delivery Take?

We aim to deliver your items in 3 - 5 Working Days unless otherwise specified (eg - Sheds and Paving Kits). After you have placed your order, we will process your order and book a delivery day - which will then be sent to you via Email.

If have a specific request, please do give our team a call on 01156976800 and we will do our best to help.

What If I Need to Return Something?

If for any reason you wish to return your purchase, we will offer a refund or an exchange as long as this is requested within 14 days of receiving your order.

A manufacturer’s restocking charge may also apply on certain products such as non-stock items, which may be up to 30% of the purchase price, and you will be notified of this amount when you request a refund or exchange.

For full information visit our Returns Policy.

Celotex PL4025 High Performance Board Insulation - 2400 x 1200 x 37.5mm
Celotex

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

£35.53 Ex VAT
£42.64 Inc VAT
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.
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.

View product