Celotex PL4000 - Insulated Plasterboard

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Brand: Celotex
In Stock
Product Code: CEPL
Est. Delivery: 2-3 Working Days
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£42.99 (ex VAT)
£51.59 (incl VAT)

Celotex by Saint-Gobain gives you an exceptional product that gives not just insulation but also drylining application rolled into one high-performing product. High-performing insulation boards include a 12.5mm tapered edge plasterboard and a composite kraft facing attached to Celotex PIR insulation. 

We recommend Celotex insulated plasterboard for the following reasons:

Thermal Performance: With a low thermal conductivity of 0.022 W/m.K, Celotex boards help keep the heat in. They are also long-lasting and durable, meaning you will enjoy the benefits of using Celotex boards for a long time. Celotex plasterboards help reach the target U-value at reduced thickness, meaning the insulation boards, saves floor space. 

Saves Time: You do not have to install an insulation board and plasterboard separately to insulate walls or roofs. You can do both with Celotex’s 2-in-1 insulated plasterboard. It hence saves the time required to install the insulation and also the money, otherwise spent on 2 different types of insulation materials.

Sustainable Product: Celotex boards are environmentally friendly and contain no CFCs or HCFCs. In addition, they also have an A+ rating from BRE Green Guide.

BBA Certified: Celotex BBA certified, meaning they can also be used to upgrade cavity wall insulation, something not every insulated plasterboard can do.

Product Specifications: 

Length: 2400mm

Width: 1200mm

Thickness: 37.5mm, 62.5mm, 72.5mm.

Reaction to Fire: Class B

Key Features:

  • Insulation and drylining application rolled into one product.
  • Insulated plasterboards are easy to install, use and handle.
  • They save the time required for installation.
  • Long-lasting durable insulation boards with performance unaffected by time.


Celotex insulated plasterboard can be used in the following applications: 

  • Between and under rafter and joists for pitched roof insulation 
  • Insulating stud walls. 
  • To insulate flat roofs of balconies and terraces.
  • Solid masonry wall insulation 
  • Timber frame lining applications
  • To insulate stud walls. 
  • Upgrade cavity wall insulation. 


BBA Approved -Cert no 16/5357.

Celotex boards are CE Marked (18.DOPPL4000-01) to BS EN 13950

Insulated plasterboards are manufactured under Environmental Management System – ISO 14001:2015. 

Celotex PL4000 has obtained the BRE Global Certification Mark. 

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