Celotex insulation comparison chart

Here at Insulation Superstore we know that finding the right insulation is key to keeping the house warm, keeping costs down and reducing your impact on the environment. But there are so many different types of insulation out there, so which is best for you?

Celotex are market leaders in the PIR insulation board industry, having manufactured and supplied PIR boards for over 90 years. But which Celotex insulation board is most suited to your project? We’ve created an easy-to-understand guide to the different Celotex PIR boards available to help you make a decision on the most suitable Celotex insulation boards for your project.

Find out the thicknesses of Celotex boards, the R value of Celotex boards, the sizes of each Celotex board, the uses of the different Celotex board ranges, and the price of Celotex boards here at Insulation Superstore to help you decide which insulation board will work best for you.

Table of Contents

1. Celotex GA4000 insulation boards
2. Celotex TB4000 insulation boards
3. Celotex XR4000 insulation boards
4. Celotex CW4000 insulation boards


Celotex GA4000 insulation boards

Celotex GA4000 uses

The Celotex GA4000 range is a range of general purpose PIR boards with thicknesses ranging from 50mm to 100mm. GA4000 is an incredibly versatile insulation board and can be used in a variety of applications. GA4000 insulation boards can be used in ground floors, whether they are solid concrete, suspended timber, or block and beam, and including ground floors with underfloor heating. Additionally, GA4000 insulation boards can be used in pitched roofs, flat roofs, timber and steel framed walls, and in a number of other projects within retrofitting and refurbishment works.

Celotex GA4000 specifications

Celotex GA4000 insulation boards are manufactured from polyisocyanurate, and have low emissivity foil facings to aid with reducing heat transfer.

The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is. 

GA4000
boards

GA4050 GA4060 GA4070 GA4075 GA4080 GA4090 GA4100
R-value (m²K/W) 2.25 2.7 3.15 3.4 3.6 4.05 4.5
Thickness (mm) 50 60 70 75 80 90 100
Width (mm) 1200 1200 1200 1200 1200 1200 1200
Length (mm) 2400 2400 2400 2400 2400 2400 2400

For the latest GA400 insulation board prices, click here.


Celotex TB4000 insulation boards

Celotex TB4000 uses

Celotex TB4000 insulation boards are very similar to GA4000 insulation boards, in that they are general purpose PIR boards that can be used in a number of different applications. TB4000 insulation boards from Celotex can be used in floors, solid walls, timber and steel frame constructions and more. The thin characteristics of TB4000 means that the TB4000 range is particularly suited to combatting localised heat losses and thermal bridging.

Celotex TB4000 specifications

TB4000 insulation boards are polyisocyanurate boards, and similarly to GA4000 insulation boards they also have low emissivity facings. However, TB4000 insulation boards are much thinner than the GA4000 range, as shown below.

The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is. 

TB4000
boards

TB4012 TB4025 TB4030 TB4040
R-value (m²K/W) 0.5 1.1 1.35 1.8
Thickness (mm) 12 25 30 40
Width (mm) 1200 1200 1200 1200
Length (mm) 2400 2400 2400 2400

For the latest TB4000 insulation board prices, click here.


Celotex XR4000 insulation boards

Celotex XR4000 uses

The XR4000 insulation board range from Celotex has been designed to provide users with a thinner insulation board that still achieves high U values. Celotex XR4000 boards have been developed to be used specifically in “cut-to-fit” applications, meaning that they can be fitted between rafters and joists to provide a highly insulating layer of insulation without being super thick.

Celotex XR4000 specifications

The Celotex XR4000 insulation boards are high performance and thin insulation boards, achieving the highest insulating levels of the Celotex insulation boards range whilst still remaining relatively thin. See the table below for exact R- values, thicknesses and sizes.

The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is. 

XR4000
boards

XR4110 XR4120 XR4130 XR4140 XR4150 XR4165 XR4200
R-value (m²K/W) 5 5.45 5.9 6.35 6.8 7.5 9.05
Thickness (mm) 110 120 130 140 150 165 200
Width (mm) 1200 1200 1200 1200 1200 1200 1200
Length (mm) 2400 2400 2400 2400 2400 2400 2400

For the latest XR4000 insulation board prices, click here.


Celotex CW4000 insulation boards

Celotex CW4000 uses

The CW4000 insulation board range has been developed specifically to be used in partial fill cavity walls. The CW4000 boards come in sizes specifically to fit within cavity walls, and can be used in both new and existing buildings.

Celotex CW4000 specifications

Developed for a particular use within cavity wall spaces, the CW4000 PIR board range has foil facings to minimise potential heat transfer within cavity wall spaces. The CW4000 insulation boards come in smaller lengths and widths to improve installation time within the cavity walls.

The R-value denotes the resistance to heat flow – the higher the R-value the more insulating the product is. 

CW4000
boards

CW4040 CW4060 CW4075 CW4100
R-value (m²K/W) 1.8 2.7 3.4 4.5
Thickness (mm) 40 60 75 100
Width (mm) 450 450 450 450
Length (mm) 1200 1200 1200 1200

For the latest CW4000 insulation board prices, click here.


If you’re still unsure of which Celotex insulation board is best suited to your project, don’t hesitate to call our team of experts – they will be more than happy to answer any questions, queries or offer project-based recommendations. Call today on 01752 692206 or use the live chat in the bottom right hand corner.

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