Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
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CELOTEX

Celotex 120mm XR4120 2.4m x 1.2m

SKU: 120mm Celotex

Est Delivery between and .

Order now and get free delivery on all Celotex orders over £300 ex vat.

  • Celotex XR4120 is a 120mm insulation board with a thermal conductivity of 0.022W/mK, designed for multi-application use in walls, floors, roofs, and cavities, ensuring optimal energy-saving and reduced heating bills.
  • The insulation board meets Building Regulations by delivering the necessary U-values with minimal thickness and features tapered edges for quick installation and adaptability.
  • Made from rigid polyisocyanurate (PIR) with foil facings, its production uses environmentally-friendly blowing agents that have zero ozone depletion potential and a low global warming impact.


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Celotex XR4120 is a multi-application insulation board primarily used to overcome cold spots created from the lack of insulation in some areas. Celotex is a trusted brand of insulation used in walls, floors, roofs and cavities and has an incomparable performance when it comes to timber frames and masonry walls. 

This 120mm Celotex xr4000 board possesses a thermal conductivity of 0.022W/mK to provide better insulation and an excellent reaction to fire when checked against European standards. It provides reliable and long-term energy-saving solutions for buildings, eventually resulting in low-cost electricity and heating bills. It has a record in successfully overcoming the extra and unnecessary usage of energy by central heating. Celotex pir insulation board delivers the required U-values with least thickness and helps meet the current and future requirements of the Building Regulations. It allows contractors to exercise a speedy installation and premium adaptability due to the tapered edge plasterboard.

Featuring foil facings, this board is produced from rigid polyisocyanurate (PIR) using a classic mix of specific blowing agents which allow this insulation board to work so efficiently. These blowing ages make Celotex XR4120 environmentally-friendly as the blowing agents acquire zero ozone depletion potential (ODP) and guarantee a low global warming impact. 


Features of Celotex 120mm XR4120 insulation board

  • Easily installed and lightweight
  • Cost-effective solution
  • Reliable for a long-term use
  • Possible to cut into multiple sizes
  • High-performance insulation
  • Shatterproof product - doesn’t break easily
  • Fire-resistant: Yes
  • Eco-friendly
  • Zero ODP and low GWP
  • General application insulation


Specifications of Celotex 120mm pir insulation board

  • Brand: Celotex
  • Coverage: 2.88m2
  • Length: 2400mm
  • Material type: Polyiso (pir insulation boards)
  • Thermal conductivity: 0.022 W/mK
  • Thickness: 120mm
  • Weight: 11.3 kg
  • Width: 1200 mm


Storage of Celotex XR4120 insulation board

Upon delivery store at ambient temperature in a dry place. Lay Celotex flat on the floor but keep clear of the ground.


Certifications of Celotex XR4120 insulation board

Celotex insulation board has an A+ rating compared to BRE Green Guide and is certified under BBA certificate number 95/3197 and 09/4667.


Other Celotex Products:

Celotex GA4000 General Purpose PIR Insulation Board: A versatile insulation board suitable for a variety of applications, such as walls, floors, and roofs.

Thermaclass Cavity Wall 21: A high-performance cavity wall insulation solution designed for new builds and refurbishment projects.

165mm Celotex XR4165 (2.4m x 1.2m): A thicker PIR insulation board providing excellent thermal performance for walls, floors, and roofs.

Celotex XR4000 Insulation Board: A comprehensive range of thicknesses to suit various insulation needs in walls, floors, and roofs.

140mm Celotex XR4140 (2.4m x 1.2m): A high-performance insulation board designed to provide efficient insulation for a variety of applications.

110mm Celotex XR4110 (2.4m x 1.2m): A thinner option of the XR series, suitable for wall, floor, and roof insulation projects.

Celotex Cavitywall 47mm: A partial-fill cavity wall insulation solution, designed for easy installation and enhanced thermal performance.


Frequently Asked Questions

What is Celotex XR4120 insulation board used for? Celotex XR4120 is a multi-application insulation board primarily used to overcome cold spots created from the lack of insulation in some areas. It can be used in walls, floors, roofs, and cavities and performs exceptionally well in timber frames and masonry walls.

What is the thermal conductivity of Celotex 120mm insulation board? The thermal conductivity of Celotex 120mm PIR insulation board is 0.022 W/mK.

Does Celotex XR4120 insulation board have any certifications? Yes, Celotex insulation board has an A+ rating compared to the BRE Green Guide and is certified under BBA certificate number 95/3197 and 09/4667.

What is the size and weight of a Celotex 120mm XR4120 insulation board? The size of the Celotex 120mm XR4120 insulation board is 2400mm in length and 1200mm in width, with a thickness of 120mm. The weight of one board is 11.3 kg.

What is the material used to make Celotex XR4120 insulation board? Celotex XR4120 insulation board is made from rigid polyisocyanurate (PIR) using a classic mix of specific blowing agents, which make the board environmentally-friendly and highly efficient.


Customer Feedback

The Celotex 120mm XR4120 Insulation Board has garnered positive feedback from customers who have used it in their homes. Many have noted that the product effectively insulates various areas, while being easy to install. Customers appreciate the fact that the insulation board significantly improves energy efficiency, reducing heating costs and providing long-term savings.

The XR4120's versatility has been praised by many customers, who have used it for insulating walls, floors, roofs, and cavities. Customers have also found the product's installation to be quick and hassle-free, thanks to the lightweight design and tapered edge plasterboard. Additionally, the product's eco-friendly materials and manufacturing process have been appreciated, as the board is made from rigid polyisocyanurate (PIR) with specific blowing agents that have zero ozone depletion potential (ODP) and low global warming impact.

Some customers have noted that the product may require additional cutting or shaping for certain areas or applications. However, the majority of customers have found the Celotex XR4120 insulation board to be effective at improving insulation and energy efficiency in a wide range of situations.

Overall, customers have found the Celotex 120mm XR4120 Insulation Board to be a versatile, easy-to-install, and effective solution for insulating various areas of their homes. They would recommend it to others who are looking for a high-quality insulation product.

    Length 2400mm
    Width 1200mm
    Coverage 2.88m2
    Thermal Conductivity 0.022 W/mK
    Thickness 120mm
    Weight_kg 11.3
    Brand Celotex
    Material Type Polyiso

    Est Delivery between and .

    Delivery will always take place on a weekday (Mon - Fri).
    For more information on delivery visit our delivery info page.

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