Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

100mm

Unit Coverage

2.88m2

Material Type

Polyisocyanurate (PIR)

Sales Unit

Board

Pieces Per Pack

1

Manufacturers Reference

GA4100

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.15kg/m2

Product Range

Celotex GA4000

Useful Information
100mm Celotex is a multi-purpose board and can be used for all applications

Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm) 2.88m2

(81 customer reviews)
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Original price was: £39.99.Current price is: £29.99. ex VAT

In Stock

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Useful Information
100mm Celotex is a multi-purpose board and can be used for all applications
Stu Cazaly
Stu Cazaly
2024-07-11
Trustindex verifies that the original source of the review is Google.
Excellect service via ordering and email. Quick delivery and great communication with delivery driver. Highly recommended.
Kendo Nagasaki
Kendo Nagasaki
2024-07-09
Trustindex verifies that the original source of the review is Google.
Delivery was correct, well packaged and on time. Driver was very helpful. Overall a great experience. Highly recommend these guys 👍
James Moore
James Moore
2024-07-08
Trustindex verifies that the original source of the review is Google.
Initial impressions : i was dubious of ordering after seeing some of the negative reviews, but equally amused by trade insulation replies....... i was looking at reviews because i'd never heard of the business, but after reading the reviews it became clear that actually the place was not a scam, the goods were arriving however people had not paid attention to tickboxes at checkout or were expecting craned deliveries (again not reading checkout\terms) and leaving their mrs at home to accept the orders i ordered 50mm celotex, and rwa45 insulation it's all arrived on the day they said it would yes i needed to help unload it, but guess what, i ordered it to use it so i fully intended to be handling it anyway and not only that even if i didn't need to help i would have had to move it anyway as they would have just done a kerbside delivery driver was great, he asked if i was comfortable in lifting the pallet of pir off in one go, (if you're not you're an adult, simply say no and open the pack) basically it came from travis perkins and i imagine it will come via other major suppliers too much like most of the online companies..... but because these guys order such large quantities they can pass on the discount and they're responsible for dealing with the the like of the tp if there's an issue summary : Yes i would recommend and yes i will order again
David Marsden
David Marsden
2024-07-07
Trustindex verifies that the original source of the review is Google.
My materials were delivered within the specified delivery window. The delivery guy was very skilled at navigating our driveway and he dropped the materials right at our front door. I’m delighted with the quality of materials and service and I will reorder from Trade Insulations Ltd at the next stage of my renovation.
Piotr Sedecki
Piotr Sedecki
2024-07-04
Trustindex verifies that the original source of the review is Google.
Great service. Arrived on time. Very helpful delivery gentelman. Highly recommend.
ian kiddle
ian kiddle
2024-07-04
Trustindex verifies that the original source of the review is Google.
Good product delivered quickly at a competitive price
*M *
*M *
2024-07-04
Trustindex verifies that the original source of the review is Google.
Recommended supplier! I found Trade Insulations easy to deal with, contactable, transparent on pricing and delivery schedules. Saved to my Favourites!

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 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 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, it reduces the need for air conditioning as it will keep the heat out. 100mm Celotex PIR board boasts outstanding performance when used in timber frames and masonry walls. Celotex 100mm 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). An A rating the GA4100 board is 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. GA4100 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, which includes the 100mm Celotex. 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

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!

GA4100 Celotex Certifications

The Celotex GA4100 board has received certification from the BBA with the following certificate numbers: 17/5405 and 16/5352. This 100mm insulation board holds an A+ rating in the BRE Green Guide, emphasising its environmentally friendly attributes.

The 100mm Celotex insulation board is one of the most recognised PIR boards on the market. In addition to this, our product page features all the product attributes and you can also use the data sheets & certifications tab to download the data sheets, which are direct from the manufacturer. Furthermore, you can find the datasheets and certifications to download below:

Celotex GA4000 Datasheet
BBA Certfication - Timber Frame
BBA Certfication - Floors
BBA Certfication - Pitched Roofs
BBA Certfication - Dry Lining

The board size is 2400mm x 1200mm and board is easy to install and can be tailored to fit if necessary. Furthermore, our competitive pricing ensures that you always get our very best price on 100mm Celotex.

Beyond its exceptional insulation properties, Celotex 100mm insulation board can also be combined with plasterboard to establish a highly efficient insulation system.

The Celotex 100mm insulation board stands as a premium product that excels in insulation. It is versatile in its applications, and is commonly used in floors, walls and roofs.

BRE Green Guide Sustainability Rating: A
Certification: BBA Approved
Thermal Conductivity: 0.022W/mK, compliant with BS EN 13165 standards for factory-made rigid polyurethane foam (PU) products
Flame Spread: Euroclass F Reaction to Fire classification, in accordance with BS EN 13501-1. Products categorised at this level of classification do not carry a smoke emission rating.

GA4000 Celotex 100mm

When buying 100mm insulation boards online, we advise you know exactly what you need before placing the order to prevent any potential delays to your project. To know how many 100mm Celotex boards you need for your project, you will have to work out the area required. You can do this by simply multiplying the height by the width of the area you want to apply insulation. For example if the space was 3m by 3m then the total area would be 9m. Each 100mm Celotex has a coverage of 2.88m2, which means you would order a minimum or 4 boards to cover this area in the given example. We advise ordering slightly over to account for wastage.

If you are unsure of the thickness required, we always advise speaking to a building professional or architect. Furthermore, our most popular size is the 100mm Celotex board and is a general purpose board. This means it can be used in walls, roofs and floor applications.

If you are looking for cheap Celotex 100mm and a first class service, order today at Trade Insulations.


Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

100mm

Unit Coverage

2.88m2

Material Type

Polyisocyanurate (PIR)

Sales Unit

Board

Pieces Per Pack

1

Manufacturers Reference

GA4100

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.15kg/m2

Product Range

Celotex GA4000

Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

100mm

Unit Coverage

2.88m2

Material Type

Polyisocyanurate (PIR)

Sales Unit

Board

Pieces Per Pack

1

Manufacturers Reference

GA4100

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.15kg/m2

Product Range

Celotex GA4000

81 reviews for Celotex 100mm PIR Insulation Board – GA4100 (2400mm x 1200mm x 100mm) 2.88m2

  1. Thomas

    Ordered when offer was on and saved £10 per board

  2. Aaron

    great staff

  3. Frank

    driver was very helpful with helping move the product

  4. Justin

    Ordered for my husband and he was shocked how much cheaper it was on here than what he usually pays. He was convinced there would be an issue but there was none at all. Amazing company

  5. Maria

    if I could give this company and their products 6/5 stars I would

  6. Malachi

    Really good quality product

  7. Ayomide

    insulation done. Will go again

  8. James

    Great value for the price. 100mm does exactly what it promises.

  9. Jasper

    Excellent price for 100mm

  10. James

    Thanks again for my 100mm Celotex. This is my second order now and won’t be my last

  11. Nicholas

    got a text on the day of delivery and even got a follow up phone call to check it was okay. good service and great website

  12. Hudson

    Delivered fine even though I have a tricky road – will use you again

  13. Leo

    they do what they say – deliver good quality products

  14. Joshua

    I advised my builder of the price i was paying on 100mm Celotex he advised they are 2nds, he was wrong these are brand new boards 🙂

  15. Alexander

    why are two 50mm Celotexs more expensive than one sheet of 100mm Celotexs?

  16. James Birges

    Standard product I use. Can’t go wrong with 100mm.

  17. john long

    Delivered. Okay.

  18. T

    Ordered 20 sheets of 100mm Celotex the other night….came in 2 days and the driver was a gentleman.

  19. Ralph S

    Was recommended 100mm Celotex for my home project, worked great.

  20. Mark Peel

    Absolutely brilliant. Really impressed with the customer experience.

  21. teddy b

    excellent service – outstanding support on live chat also!

  22. Wisker Directs

    was searching for a few hours online then found Trade Insulations who has all sizes available online and the plasterboards.

  23. Fern J Jackson

    purchased 50 sheets of 100mm Celotex, had a phone call after placing my order by Sarah who let me pick when I required on site.

  24. Mr Walker

    Wanted 100mm Insulation Board – good price compared to local company – easy to cut – easy to use – all round very happy with my purchase.

  25. Katie

    They sell to anyone so you don’t actually need to be in the trade to get the price online. Very happy with the website and customer service

  26. Reggie

    Support was outstanding and the team were very helpful. They recommend the 100mm Celotex and it has been perfect.

  27. H

    The best place for 100mm Celotex. Trade Insulations tick all the boxes for me

  28. Paul S

    3rd time ordering from you and perfect every time

  29. L Wright

    Just perfect. I live down a tricky road but the guys at Trade Insulations worked with me to get this order out (and on the day I needed it)

  30. ANDREY

    GREAT WEBSITE VERY QUICK DELIVERY THANKS

  31. Jason

    Great experience from ordering to delivery. 5 Stars

  32. M A

    Got a call to confirm delivery date. Very good comunication. I will be telling all my mates to use you !!!

  33. greg

    Thx

  34. Adrian Miller

    excellent service so will use u again

  35. Asad

    Perfect service ….. 5 stars from me!

  36. Tad

    Needed the Celotex boards before I went on holiday – spoke to one of the blokes there (can’t remember the name now!) and he was able to get my delivery to me within 2 days. Excellent service

  37. Reggie

    Always have the best price on 100mm Celotex – but shame you dont do timber.

  38. Omair

    Got put onto this website through a mate of mine – not looked back. Its the only place I get my 100mm Celotex – or any Celotex for that matter

  39. Lloyd Hughes

    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.

  40. Gerry Newman

    good product, come well packaged. Driver was brilliant

  41. John Heeps

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

  42. Lee Holton

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

  43. Maisie

    Incredible service – no complaints at all!

  44. Jenny S

    Good product . Does the job

  45. Janet Whisk

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

  46. Easy Floor Builders

    ***** 5 Star

  47. Faz

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

  48. Debbie Hazle

    Celotex 100mm Great Board & Easy to Cut

  49. Mr Woods

    Nice and easy way to order!

  50. Harry Lester

    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.

  51. Janice M

    Happy with my order, thank you for the service

  52. Ralph

    Brand New Boards Delivered Today.

  53. Tommy Lester

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

  54. Lewis Woolfe

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

  55. Tara

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

  56. Hamsa

    Not bad, thank you

  57. David Jordan

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

  58. Charlie

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

  59. Radek

    good product, very fast delivery

  60. George Carson

    Been using Celotex for years. Can’t beat it

  61. Lucy Keedle

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

  62. darren freeman

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

  63. John wood

    Best prices we found online. Product turned up as described

  64. Stu

    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.

  65. Bhavika

    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!

  66. Gaz

    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.

  67. Jason

    Very good and easy to use

  68. Sarah Gwilliams

  69. Jeff Dune

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

  70. Lisa Sterling

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

  71. Darren

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

  72. Pat Moss

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

  73. Tony S

    Thank you 5*

  74. Rosie Mase

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

  75. Greg Potts

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

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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.

Question:

Is this product different to GA4000?

tradein
17-Aug-2022

Answer:

The product code for Celotex 100mm is GA4100. GA4000 is a range of PIR boards by Celotex with thicknesses between 50mm and 100mm. Celotex GA4100 is included in the GA4000 range.

Question:

Where do you deliver?

tradein
17-Aug-2022

Answer:

Our branches can be found across the whole of the UK. This means we can offer speedy delivery on our Celotex Insulation Boards.

Question:

is this the same 100mm celotex travis perkins supply?

insulationadmin
08-Feb-2023

Answer:

Yes, it is exactly the same but at a fraction of the price

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.

Celotex GA4000 Datasheet
BBA Certfication - Timber Frame
BBA Certfication - Floors
BBA Certfication - Pitched Roofs
BBA Certfication - Dry Lining

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