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Celotex PIR Insulation Board
Celotex PIR Board (TB4000, GA4000, XR4000)
Celotex PIR Insulation Board Key Features
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Home Brands Celotex Celotex PIR Insulation Boards Celotex GA4000 Insulation Boards Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm)
Celotex

Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm)

Rated 4.86 out of 5 based on 37 customer ratings
(37 customer reviews)

£42.90 £38.90 ex VAT

In Stock

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Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

100mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

GA4100

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass E

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.15kg/m2

FREQUENTLY BOUGHT TOGETHER
Celotex PIR Insulation Board
+Knauf Loft Roll 44
+Knauf Wallboard Plasterboard
+Trade Insulations Foil Tape
Celotex PIR Insulation Board
This item: Celotex 100mm PIR Insulation Board - GA4100 (2400mm x 1200mm x 100mm) £42.90 £38.90 ex VAT £42.90 £38.90 ex VAT

In Stock

Knauf Loft Roll 44
1 × Knauf 100mm Loft Roll 44 - Combi Cut (13.89m2 Roll) £36.68 £31.90 ex VAT

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Knauf Wallboard Plasterboard
1 × Knauf Wallboard Plasterboard 12.5mm (2400mm x 1200mm) (2.88m2) Tapered Edge £8.08 ex VAT

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Trade Insulations Foil Tape
1 × Trade Aluminum Foil Tape - 75mm x 45m £7.50 ex VAT

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  • Description
  • Reviews (37)
  • Q & A
  • About Celotex
  • Datasheets & Certifications
Description

Celotex 100mm PIR Insulation Board

Celotex GA4100 is a highly versatile PIR board from Celotex. This multi-purpose rigid insulation board is ideal for a variety of applications. This includes solid floors, pitched roofs, flat roofs, masonry walls and steel framed and timber framed systems. 100mm Celotex is easy to handle and boasts excellent thermal qualities. This is a reason why the GA4100 100mm Celotex PIR board is so popular. Celotex GA4100 forms part of the GA4000 range. The Celotex brand is a part of the Saint-Gobain family. Saint-Gobain is a leading manufacturer of insulation boards. The Celotex GA4000 range is at the very core of the Celotex product range. This makes the GA4100 (100mm Celotex) variation a leading choice in construction projects.

Celotex 100mm insulation boards are made from rigid polyisocyanurate (PIR). GA4100 insulation boards have zero ozone depletion potential, which is known in the industry as zero ODP. It also boasts low global warming potential (GWP). Celotex 100mm Insulation Board features aluminium low emissivity foil facings on both sides. This innovative foil-facing technology vastly improves thermal performance in sealed cavity air spaces.

Celotex 100mm insulation board is a high-performing PIR board that is environmentally friendly. It is designed to reduce energy bills and therefore reduce carbon footprint. In the summer months, it also reduces the need for air conditioning as it will keep the heat out. The 100mm Celotex PIR board boasts outstanding performance when used in timber frames and masonry walls. 100mm Celotex insulation board has a thermal conductivity rating of 0.022W/mK. In addition to this, the GA4100 has a Green Guide Rating of A, which is the standard set by the BRE (Building Research Establishment). A rating of A means that the GA4100 board rates great for environmental performance. This means not only is 100mm Celotex better for the planet, but it can also help provide long-term energy savings.

Celotex 100mm Features

  • Easy to cut and therefore shape
  • Celotex is cost-effective
  • Good reaction to fire in accordance with EU standards
  • A durable and reliable insulation board
  • Made from high-performing PIR
  • Provides long-term energy savings for buildings
  • Features low emissivity foil facings for enhanced performance

GA4100 Application

100mm Celotex insulation boards can be used in a variety of applications. For example, this includes flat roofs, pitched roofs, solid masonry walls,  floors, timber-framed, and steel-framed systems. The industry-leading board is easy to cut and shape for use. Furthermore, it can be dot and dabbed. Celotex insulation boards provide long-term energy savings for buildings. 100mm Celotex is manufactured in accordance with quality management systems (BS EN ISO 9001:2000). Celotex 100mm is quick and easy to install therefore making it a great choice for building projects. GA4100 is just one of many products that make up the GA4000 range. Full application types of this 100mm insulation board can be found below.

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

100mm Celotex

Get our best price available on all Celotex boards. Order now for quick delivery and save on your project today. Are you looking for a different thickness of Celotex Insulation? We sell a range of Celotex products on our website. Furthermore, we sell a whole range of top brands at trade prices. If you need help, get in touch with us. Our friendly team of experts is at hand to give you advice.

Celotex has a broad selection of insulation board thicknesses. The thickness can range from 12mm up to 200mm.
Visit the following link for all Celotex Insulation Boards

This product has square edges and measures 2.4m in length and 1.2m in width. The total coverage for this product is 2.88m2.

If you want further information on this product, you can visit the Celotex website. Here you can find full product specifications as well as full datasheets.

At Trade Insulations, we take pride in providing top brands at trade prices. Why pay more for your insulation when you can use us?

Did you know that the GA4100 is one of our top-rated products? 100mm Celotex is by far the best-selling product on our website, and we continue to honour our very best prices on this quality PIR insulation board.

Do you have an upcoming project that requires 100mm Celotex? Order online now for express delivery. Our friendly team will be in touch to confirm your date and work with you to ensure that the whole process runs smoothly. Furthermore, we take customer satisfaction very seriously and go the extra mile to help our customers. As a result, we are 5-star rated online. We are a supplier you can trust. Finally, an insulation supplier that won’t let you down!

Useful Guides
Insulation Compression Strength

What Is Compression Strength?

Celotex Boards

Celotex Insulation Size Guide (Thickness & Dimensions)

What are the different types of insulation boards


Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

100mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

GA4100

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass E

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.15kg/m2

Reviews (37)

37 reviews for Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm)

  1. Rated 5 out of 5

    Lloyd Hughes – August 1, 2022

    Ordered 25 sheets of 100mm with a different insulation company a couple of months ago and turned up 4 days later, ordered with Trade Insulations they phoned me straight away and booked me in a delivery date that suited me.

  2. Rated 5 out of 5

    Gerry Newman – July 24, 2022

    good product, come well packaged. Driver was brilliant

  3. Rated 3 out of 5

    John Heeps – July 22, 2022

    Was too tight to go into my timbers I should have purchased 90mm

  4. Rated 5 out of 5

    Lee Holton – July 8, 2022

    Speedy Delivery and was cost effective, phoned Celotex direct to order and was recommended to use Trade Insulations as they are approved suppliers.

  5. Rated 5 out of 5

    Maisie – June 21, 2022

    Incredible service – no complaints at all!

  6. Rated 5 out of 5

    Jenny S – June 20, 2022

    Good product . Does the job

  7. Rated 5 out of 5

    Janet Whisk – May 23, 2022

    Easy to Cut / Nice Boards / All Brand New / will do a few more DIY Jobs myself

  8. Rated 5 out of 5

    Easy Floor Builders – April 28, 2022

    ***** 5 Star

  9. Rated 5 out of 5

    Faz – April 27, 2022

    Ordered 20 sheets, delivered next day. Will be back for the next part of the project.

  10. Rated 5 out of 5

    Debbie Hazle – April 21, 2022

    Celotex 100mm Great Board & Easy to Cut

  11. Rated 5 out of 5

    Mr Woods – April 7, 2022

    Nice and easy way to order!

  12. Rated 5 out of 5

    Harry Lester – April 3, 2022

    100mm Celotex Insulation Board – very happy – 20 sheets delivered – good customer service – good driver – good notification – happy with Trade Insulations – Spoke to Lucy in sales who helped.

  13. Rated 5 out of 5

    Janice M – March 30, 2022

    Happy with my order, thank you for the service

  14. Rated 5 out of 5

    Ralph – March 25, 2022

    Brand New Boards Delivered Today.

  15. Rated 5 out of 5

    Tommy Lester – February 9, 2022

    5 Star Service when bought 100mm board, driver unloaded himself and was very helpful. Thank you to Millie at Trade Insulations for updates

  16. Rated 4 out of 5

    Lewis Woolfe – January 27, 2022

    easy to order and good service, needed more and got it out to me the next day.

  17. Rated 5 out of 5

    Tara – December 14, 2021

    good product, used this to insulate a big shed we bought. did the job really well

  18. Rated 4 out of 5

    Hamsa – November 29, 2021

    Not bad, thank you

  19. Rated 5 out of 5

    David Jordan – November 25, 2021

    best price on 100mm Celotex that I could find online.

  20. Rated 5 out of 5

    Charlie – November 23, 2021

    was messed about by the other online insulation company, spoke to Trade Insulations and managed to get me my delivery in 2 days.

  21. Rated 5 out of 5

    Radek – November 16, 2021

    good product, very fast delivery

  22. Rated 5 out of 5

    George Carson – November 10, 2021

    Been using Celotex for years. Can’t beat it

  23. Rated 5 out of 5

    Lucy Keedle – October 27, 2021

    Ordered 50 sheets, 2 day delivery great price and great service.

  24. Rated 5 out of 5

    darren freeman – October 12, 2021

    best prices on the internet. great product. great company too

  25. Rated 5 out of 5

    John wood – October 6, 2021

    Best prices we found online. Product turned up as described

  26. Rated 5 out of 5

    Stu – September 21, 2021

    Ordered online and got a call after to confirm delivery dates. The job was on a tricky road but they still managed it. The driver went above and beyond for us.

  27. Rated 5 out of 5

    Bhavika – September 10, 2021

    I Phoned last minute and advised I hurt my back and spoke to transport who put my order on a lorry with a forklift, nice work!

  28. Rated 5 out of 5

    Gaz – September 8, 2021

    We had to get some 100mm Celotex last minute and see this website had the best price. The boards were delivered quickly and we even got a courtesy call after to ask how the job went. Top company and will be using again.

  29. Rated 4 out of 5

    Jason – September 7, 2021

    Very good and easy to use

  30. Rated 5 out of 5

    Sarah Gwilliams – September 6, 2021

  31. Rated 5 out of 5

    Jeff Dune – September 6, 2021

    Very happy with the 100mm Celotex boards that arrived today.

  32. Rated 5 out of 5

    Lisa Sterling – September 5, 2021

    Better price than my builder, save me £400 on my order.

  33. Rated 5 out of 5

    Darren – September 5, 2021

    Quick delivery and really easy to order. Will come back for my next project!

  34. Rated 5 out of 5

    Pat Moss – September 4, 2021

    Delivered in 3 days, sales staff very nice and helpful.

  35. Rated 5 out of 5

    Tony S – September 2, 2021

    Thank you 5*

  36. Rated 5 out of 5

    Rosie Mase – September 1, 2021

    Cheaper than eBay & received in 3 days!!!!!!!

  37. Rated 5 out of 5

    Greg Potts – August 31, 2021

    Ordered 100mm Celotex for my man cave, great price and great service

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Q & A

Please login to post questions

Question:

How do you cut Celotex 100mm Insulation Board?

max
11-Aug-2022

Answer:

Celotex 100mm boards can be easily cut like any other PIR board. The best and most efficient way is to use a handsaw. Measure precisely what you need and mark it with a pencil on the board. Once you have marked it, use the handsaw to make the cut. This should produce minimal dust, however, ensure PPE is worn to prevent debris inhalation.

Question:

What is the U Value of 100mm Celotex?

tradein
11-Aug-2022

Answer:

We are unable to calculate the U-Value as this would depend on the application. For the most accuracy, this question should be presented to your builder or architect.

Question:

What is the best way to store this product?

tradein
11-Aug-2022

Answer:

Celotex PIR insulation boards are best stored in cool and dry conditions. Avoid exposing the insulation board to bad weather and take extra care when handling the board to avoid damage to the corners due to knocks and bumps.

Question:

Are these Celotex boards second hand?

tradein
11-Aug-2022

Answer:

Absolutely not. Our insulation boards are brand new despite our low price. We believe in providing top brands at trade prices.

Question:

Can I use 100mm Celotex Board on floors?

tradein
11-Aug-2022

Answer:

Yes. The GA4100 Celotex Board is a multi-purpose board. This means it is suitable for roof, wall and floor applications.

About Celotex
Celotex is a leading manufacturer of insulation products. Celotex is a part of the Saint-Gobain Insulation UK group and has been innovating the insulation market since 1925. Celotex provides a large range of insulation solutions from plasterboard to PIR insulation boards.They provide a variety of solutions for different market sectors and also applications.Saint-Gobain believes in creating great living places and improving daily life. They have good technical support and are a trusted name in the business.At Trade Insulations, we offer the best prices on Celotex board.
Datasheets & Certifications
Celotex GA4000 Datasheet
BBA Certfication - Timber Frame
BBA Certfication - Floors
BBA Certfication - Pitched Roofs
BBA Certfication - Dry Lining
SKU: TB4000-3-1-1-1-1-1-1-1-1-1 Categories: Celotex, Celotex GA4000 Insulation Boards, Celotex PIR Insulation Boards, Concrete Floor Insulation, Flat Roof Insulation, Floor Insulation, Floor Insulation Board, Insulation Boards, Internal Wall Insulation, Loft Insulation, Multifoil Insulation & Foil Insulation, PIR Insulation Boards, Pitched Roof Insulation, Roof Insulation, Roof Insulation Board, Underfloor Insulation, Wall Insulation, Wall Insulation Board
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Celotex PIR Insulation Board

Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm)

Rated 4.86 out of 5
£42.90 £38.90 ex VAT

In Stock

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small delivery completed successfully in a timely manner through excellent communications and positive discussions around accessibility due to tricky location