Celotex Roof Insulation

We sell a wide variety of celotex roof insulation products to suit your needs. Celotex roof insulation is designed to provide superior thermal performance, and it is available in a variety of thicknesses to suit your needs. We also offer a selection of accessories, including edge trim and fixings, to help you complete your project. Whether you are insulating a new build or retrofitting an existing property, we have the products you need to get the job done right. We also offer free delivery on all eligible orders, so you can be sure you are getting the best possible deal.
Celotex 50mm GA4050 2.4m x 1.2m
Celotex 50mm GA4050 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£19.43 £23.32
Sale price
£19.43 £23.32
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£0.00
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Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex
Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex Floor Insulation
Vendor
Celotex
Regular price
£31.67 £38.00
Sale price
£31.67 £38.00
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£0.00
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Celotex 25mm TB4025 2.4m x 1.2m
Celotex 25mm TB4025 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£13.22 £15.86
Sale price
£13.22 £15.86
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£0.00
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75mm Celotex GA4075 2.4m x 1.2m
75mm Celotex GA4075 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£27.67 £33.20
Sale price
£27.67 £33.20
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£0.00
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Celotex 120mm XR4120 2.4m x 1.2m
Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£42.22 £50.66
Sale price
£42.22 £50.66
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£0.00
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150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm
150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm Floor Insulation
Vendor
Celotex
Regular price
£49.94 £59.93
Sale price
£49.94 £59.93
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£0.00
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Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm
Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm Loft Insulation
Vendor
Celotex
Regular price
from £42.04 £50.45
Sale price
from £42.04 £50.45
Regular price
£0.00
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Celotex 40mm TB4040 2.4m x 1.2m
Celotex 40mm TB4040 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£18.89 £22.67
Sale price
£18.89 £22.67
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£0.00
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70mm Celotex GA4070 2.4m x 1.2m
70mm Celotex GA4070 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£28.33 £34.00
Sale price
£28.33 £34.00
Regular price
£0.00
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90mm Celotex GA4090 2.4m x 1.2m
90mm Celotex GA4090 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£33.32 £39.98
Sale price
£33.32 £39.98
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£0.00
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Celotex 60mm GA4060 2.4m x 1.2m
Celotex 60mm GA4060 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£25.44 £30.53
Sale price
£25.44 £30.53
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£0.00
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Celotex 30mm TB4030 2.4m x 1.2m
Celotex 30mm TB4030 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£15.56 £18.67
Sale price
£15.56 £18.67
Regular price
£0.00
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80mm Celotex GA4080 2.4m x 1.2m
80mm Celotex GA4080 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£30.99 £37.19
Sale price
£30.99 £37.19
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£0.00
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140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
140mm Celotex XR4140 Insulation Board 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£49.94 £59.93
Sale price
£49.94 £59.93
Regular price
£0.00
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per 
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12mm Celotex TB4012 2.4m x 1.2m
12mm Celotex TB4012 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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Celotex 20mm TB4020 2.4m x 1.2m
Celotex 20mm TB4020 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£17.17 £20.60
Sale price
£17.17 £20.60
Regular price
£0.00
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130mm Celotex XR4130 2.4m x 1.2m
130mm Celotex XR4130 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£49.67 £59.60
Sale price
£49.67 £59.60
Regular price
£0.00
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per 
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Celotex 110mm XR4110 2.4m x 1.2m
Celotex 110mm XR4110 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£42.04 £50.45
Sale price
£42.04 £50.45
Regular price
£0.00
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per 
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Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12)
Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12) Wall Insulation
Vendor
Celotex
Regular price
£797.78 £957.34
Sale price
£797.78 £957.34
Regular price
£0.00
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Thinsulex TLX Silver Multifoil 1.2m x 10m (12m2 roll)
Thinsulex TLX Silver Multifoil 1.2m x 10m (12m2 roll) Loft Insulation
Vendor
Thinsulex
Regular price
£193.41 £232.09
Sale price
£193.41 £232.09
Regular price
£0.00
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Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12)
Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12) Loft Insulation
Vendor
Celotex
Regular price
£1,053.33 £1,264.00
Sale price
£1,053.33 £1,264.00
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£0.00
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Thinsulex TLX Gold Multifoil 1.2m x 10m (12m2 roll)
Thinsulex TLX Gold Multifoil 1.2m x 10m (12m2 roll) Loft Insulation
Vendor
Thinsulex
Regular price
£258.55 £310.26
Sale price
£258.55 £310.26
Regular price
£0.00
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Celotex Crown-Up Flat Roof PIR Insulation - All Sizes
Celotex Crown-Up Flat Roof PIR Insulation 1.5m x 12.20m - All Sizes All Insulation
Vendor
Celotex
Regular price
from £613.35 £736.02
Sale price
from £613.35 £736.02
Regular price
£0.00
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Celotex Crown-Fix Flat Roof PIR Insulation 2.7m x 25m - All Sizes
Celotex Crown-Fix Flat Roof PIR Insulation 2.7m x 25m - All Sizes All Insulation
Vendor
Celotex
Regular price
from £857.06 £1,028.47
Sale price
from £857.06 £1,028.47
Regular price
£0.00
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per 
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The pinnacle of thermal efficiency and a leading choice for insulation solutions, the Celotex Roof Insulation range on Insulation4less offersa diverse array of products, each meticulously designed to cater to different specifications and needs.

All Celotex insulation boards are renowned for their exceptional thermal performance, ensuring optimal energy efficiency and a notable reduction in heating costs for both residential and commercial properties. The typical use of PIR technology in Celotex insulation boards equips them with unparalleled heat retention and reflective properties, making them a staple in sustainable and energy-efficient building practices.

 

General Application Boards

GA4000 Series

  • Representative Products: GA4050, GA4060, GA4070, GA4080, GA4090, and others
  • Thickness Range: 50mm-100mm (varied)
  • Applications: Predominantly used in a multitude of applications like roof, wall, and floor insulation, offering versatile solutions with varied thickness to address different U-value requirements and installation spaces.

 

High-Performance Boards

XR4000 Series

  • Representative Products: XR4110, XR4120, XR4130, XR4140, XR4150, XR4165, XR4200, and others
  • Thickness Range: 110mm-200mm
  • Applications: Ideal for projects demanding higher thermal efficiency with a thicker profile. They cater to applications requiring robust insulation without compromising on internal living or storage space.

 

Multifoil Insulation

Thinsulex Series

  • Representative Products: Thinsulex TLX Silver Multifoil, Thinsulex TLX Gold Multifoil
  • Applications: This multifoil insulation, with multiple layers, provides a thin, flexible yet highly effective insulation solution. It is suitable for roofs, walls, and floors and provides reliable thermal regulation, reflecting excessive heat and providing a vapour control layer.

 

Flat Roof Insulation

Crown Series

  • Representative Products: Crown-Up Flat Roof PIR Insulation, Crown-Fix Flat Roof PIR Insulation
  • Applications: These products are specifically devised for flat roof applications, providing enhanced thermal performance and compatibility with various waterproofing systems. They offer a perfect solution for both new build and refurbishment projects concerning flat roofs.

 

 

Guidance on Product Selection

For Standard Applications: If you're looking for insulation for typical residential and commercial applications without any specific criteria, products from the GA4000 series would be a notable choice.

Addressing Thermal Bridging: TB4000 series products, being slimmer, are ideal for thermal bridging applications, ensuring that the areas around windows and doors are efficiently insulated and free from cold spots.

High Thermal Demand: For premises and projects demanding superior thermal retention, especially in larger spaces where a thicker installation can be accommodated, products from the XR4000 series cater proficiently.

Innovative Multifoil Solutions: For installations demanding flexibility, ease of use, and a multi-faceted thermal barrier, Thinsulex products offer a premium, albeit thin, insulation layer suitable for various applications.

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