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Celotex  |  SKU: 48369610654043

Celotex PIR Insulation Board - 2400mm x 1200mm - All Thicknesses


£11.85 GBP £13.20
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Things you should know about this product!

  • This product is sold by the board
  • This product is available in the following thicknesses: 20mm, 25m, 30mm, 40mm, 50mm, 60mm, 70mm, 75mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 165mm and 200mm

Description

Explore our range of Celotex PIR Insulation Boards, choose between TB4000, GA4000 and XR4000. Available in a variety of PIR insulation thicknesses to enhance thermal efficiency for multiple applications.

These versatile insulation boards help retain heat during winter and keep interiors cool in summer, improving energy efficiency and thermal performance.

Easy to install, Celotex PIR boards feature a low-emissivity foil facing and are classified as Euroclass F for fire performance.

Celotex PIR Insulation Boards are versatile polyisocyanurate (PIR) solutions designed for easy installation across floors, walls, and roofs. They come in a standard size of 2400mm x 1200mm, with thicknesses ranging from 20mm to 200mm to suit various applications.

Commonly chosen thicknesses include:

  • 100mm – Ideal for high-performance insulation in roofs and walls.
  • 50mm – Suitable for floors and walls where space is limited but good thermal efficiency is needed.
  • 25mm – Great for areas requiring thinner insulation, especially floors.

150mm Celotex PIR Insulation is commonly used in external walls or roofs with a 60mm overlay to meet current building regulations. It's also suitable for insulating ground floors.

What's the difference between Celotex TB4000, GA4000, and XR4000?

While they are all the same type of board, they are classified as TB4000, GA4000, or XR4000 according to their thickness: TB4000 for thinner boards, GA4000 for medium thickness, and XR4000 for thicker options. See a breakdown below:

  • Celotex TB4000 is available in thinner sizes, from 20mm to 40 mm. It’s designed to reduce thermal bridging (when heat escapes through parts of a structure with less insulation). It’s often used around the edges of floors, walls, or pitched roofs to boost thermal efficiency without adding much bulk.
  • Celotex GA4000 is a General-purpose PIR insulation board suitable for pitched roofs, walls, dry lining, and floor insulation. Its thickness ranges from 50mm to 100mm, and is known for its versatility and high thermal performance. It can be used effectively in various building applications, including being installed in the middle of pitched roofs.
  • Celotex XR4000 is a high-performance PIR insulation board suitable for various applications, including walls, roofs, and floors. It’s offered in a range of thicknesses, from 110mm to 200mm. XR4000 is particularly effective in reducing heat loss in external applications and is often used where high insulation values are required.

Specifications

  • Length
    2400mm
  • Width
    1200mm
  • Material type
    Polyisocyanurate
  • Thermal conductivity
    0.022 W/mK
  • Fire rating
    Euroclass F
  • Compressive strength
    120 kPa
  • Edge
    Square

Key Features

  • Lightweight 2400 x 1200mm boards with a range of thicknesses
  • Ideal for roofs, walls and floors
  • Low emissivity foil facing
  • BBA certified – certificate 17/5405 (Pitched Roof, Dry Lining, Floor Insulation)
  • Easy to Install

Where to use

Choosing the right PIR Insulation board for your application:

Floor Insulation: GA4000 and XR4000 boards are ideal for use in ground floors, suspended timber floors, and concrete slabs. These boards provide high compressive strength and moisture resistance, making them perfect for a variety of floor insulation needs.

The TB4000 board is an excellent option for areas requiring a thinner insulation profile.

Pitched Roof Insulation: TB4000, GA4000 and XR4000 boards offer superior thermal performance.

GA4000 and XR4000 are commonly used between and over rafters for maximum insulation, while TB4000 provides a slimmer option for applications where space is a constraint.

Wall Insulation: GA4000, TB4000, and XR4000 boards are versatile solutions. These products are well-suited for internal wall insulation and external applications, offering excellent thermal performance across different wall types.

Frequently asked questions

What is PIR insulation?

PIR, or polyisocyanurate, is a popular type of insulation known for its exceptional thermal efficiency. It is among the most effective insulation materials available in the industry today. Its unique properties make it a preferred choice for various applications in building and construction projects, helping to improve energy efficiency and reduce heat loss.

What Happens if PIR Insulation Gets Wet?

PIR insulation, or polyisocyanurate insulation, is designed to be resistant to moisture; however, prolonged exposure to water can lead to significant damage. If PIR insulation becomes wet, it can lose its insulating effectiveness and overall performance may deteriorate.

What are the 3 different types of Celotex PIR?

Within the Celotex PIR range, there are three distinct products: TB4000, GA4000, and XR4000. These product names correspond solely to the varying thicknesses available, with no differences in their fundamental composition.

What is the difference between Celotex TB4000, Celotex GA4000 and Celotex XR4000?

Comparing Celotex TB4000, GA4000, and XR4000, the key distinction lies in their respective thicknesses, directly impacting thermal performance. TB4000 is available in thicknesses ranging from 20mm to 40mm, offering a thinner option suitable for spaces with limited room. GA4000 comes in thicker variants, ranging from 50mm to 100mm, providing better insulation for general building applications. XR4000 surpasses both in thickness options, ranging from 110mm to 200mm, thus offering superior thermal performance. It's essential to consider these thickness variations when selecting insulation materials, as thicker options generally provide better insulation against heat transfer.

How is Celotex PIR insulation installed?

Celotex PIR insulation is typically installed by fixing it in place using mechanical fixings or adhesives. It can be cut to size to fit snugly between studs, joists, rafters, or within cavity walls, ensuring proper coverage and thermal performance.

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Facet
Celotex PIR Insulation Board - 2400mm x 1200mm - All Thicknesses
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Price
Price
From £10.95 GBP £12.64
From £10.95 GBP
From £12.09 GBP
Length
Length
2400mm
2400mm
2400mm
Width
Width
1200mm
1200mm
1200mm
Edge
Edge
Square
Square
Square
Fire rating
Fire rating
Euroclass F
Euroclass F
Euroclass F
Compressive strength
Compressive strength
120 kPa
120 kPa - 140 kPa
150 kPa
Thermal conductivity
Thermal conductivity
0.022 W/mK
0.022 W/mK
0.022 W/mK
Material type
Material type
Polyisocyanurate
Polyisocyanurate
Polyisocyanurate

Customer Reviews

Based on 13 reviews
92%
(12)
8%
(1)
0%
(0)
0%
(0)
0%
(0)
S
Stephen Lawson

Excellent quality

S
Stephen Lawson
Celotex boards

Excellent quality, prompt delivery. Very easy to cut and use.

H
Harriet Blair

Many thanks

B
Brian Victor Legrove

Large, but easy to handle sheets. Laminated with foil on both sides, one for marking and measuring, reverse for reflective properties.

N
Nathan Chilcott
Excellant Service

Thanks for all your work in delivering my insulation. I was informed that my insulation was out of stock and given the options to deal with this. Well done!! Particularly the driver who had to unload by himself. BIG THX!!!

Frequently Asked Questions

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Celotex
Celotex PIR Insulation Board - 2400mm x 1200mm - All Thicknesses
From £10.95 GBP £12.64

Length

2400mm

Width

1200mm

Edge

Square

Fire rating

Euroclass F

Compressive strength

120 kPa

Density

N/A

Thermal conductivity

0.022 W/mK

Material type

Polyisocyanurate
View product