100mm Celotex GA4100 2.4m x 1.2m Floor Insulation
100mm Celotex GA4100 2.4m x 1.2m Floor Insulation
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Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex

Product Code: 100mm Celotex

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Celotex 100mm GA4100 Insulation Board is a cost-saving and environmentally-friendly general purpose insulation board for insulating buildings to a high-quality.

With 100mm Celotex, you can be sure that you are investing in long-term insulation that reduces excessive heat loss or builds up. Thanks to its insulation properties as a multi-purpose insulation board, over time Celotex prevents unnecessary usage of energy when heating or air-conditioning your premises.

Multi Application Insulation Board

Celotex insulation boards are designed to eliminate cold spots and fit a wide variety of spaces such as a floor, wall, or even the roof. Showcasing excellent performance in timber frames, roof windows, roof as well as masonry walls, Celotex GA4100 100mm is rigid, strong, and maintains the same efficiency over many years.

This Celotex insulation board has been made with the environment in mind. Manufactured using polyisocyanurate and blowing agents with zero ozone depletion potential, great care was used in the making of this product. This 100mm Celotex product meets BRE Global Green Guide standards and is a low global warming potential and is recommended for greener solutions when it comes to building materials insulation.

For more information on this 100mm insulation board Celotex product and its uses please click on the Datasheets tab where you will find a manufacturer product data-sheet.

Celotex Insulation Specifications

  • Thermal conductivity for 100mm insulation boards: 0.022 W/mK
  • Board is available in various sizes including 100mm to fit even between cavity wall ties
  • 100mm Board is coated in low emissivity foil
  • Celotex Board is made from strong polyisocyanurate (PIR)
  • Multi Purpose Insulation Board
  • Low cost PIR insulation boards with excellent thermal performance, 
  • Multi application insulation board suited for a wide range of applications
  • low emissivity foil facing providing extra vapour resistance.


Celotex Applications:

Celotex is suitable for a wide range of applications

  • Ground Floor - Concrete Slab, Suspended Timber Joist, Beam and Block, and Upgrading Existing Concrete Slab
  • External Wall - Timber Frame Internal Linings, Timber Frame Sheathing, Between Timber Frame Studs, Solid Masonry Internal Linings
  • Pitched Roof - Over Timber Rafters, Sarking, Below Timber Rafters, Between Timber Rafters, Loft insulation - Between and Over Timber Joists
  • Flat Roof - Balconies & Terraces Over Joists, Between Timber Joists, Below Timber Joists


Celotex PIR Insulation Boards Storage Guidelines

Celotex boards should always be stored in a dry place after delivery, ideally on timber or pallets in doors facing down to prevent damage to the boards. For more information on how to store your Celotex GA4100 after delivery please contact a member of our team.


Certifications of Celotex GA4100 Board

The Celotex GA4100 board is certified by BBA with the certificate number 17/5405 and 16/5352. This insulation board has received an A+ rating in BRE Green Guide.

If you have any questions you can contact us and one of our helpful team will be happy to assist. Don't forget to leave a review!

brand Celotex
coverage 2.88m2
length 2400mm
material-type Polyiso
thermal-conductivity 0.022 W/mK
thickness 100mm
weight_kg 9.41
width 1200mm

Est Delivery between and

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

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