Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

120mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

XR4120

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.93kg/m2

Product Range

Celotex XR4000

Useful Information
120mm Celotex is a multi-purpose board and can be used for all applications

120mm Celotex Insulation Board – XR4120 (2400mm x 1200mm x 120mm) 2.88m2

(25 customer reviews)
Delivery In 2-3 Working Days
Request your delivery date in checkout
Free Delivery
on orders over £300
+VAT
Secure your product at this price before the increase

Original price was: £51.99.Current price is: £38.49. ex VAT

In Stock

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Useful Information
120mm 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 120mm PIR Insulation Board

Celotex XR4120 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. 120mm Celotex is easy to handle and boasts excellent thermal qualities. This is a reason why the XR4120 120mm Celotex PIR board is so popular. Celotex XR4120 forms part of the XR4000 range. The Celotex brand is a part of the Saint-Gobain family. Saint-Gobain is a leading manufacturer of insulation boards. The Celotex XR4000 range is at the very core of the Celotex product range. This makes the XR4120 (120mm Celotex) variation a leading choice in construction projects.

Celotex 120mm insulation boards are made from rigid polyisocyanurate (PIR). XR4120 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 120mm 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 120mm 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 120mm Celotex PIR board boasts outstanding performance when used in timber frames and masonry walls. 120mm Celotex insulation board has a thermal conductivity rating of 0.022W/mK. In addition to this, the XR4120 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 XR4120 board rates great for environmental performance. This means not only is 120mm Celotex better for the planet, but it can also help provide long-term energy savings.

Celotex 120mm 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

XR4120 Application

120mm 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. 120mm Celotex is manufactured in accordance with quality management systems (BS EN ISO 9001:2000). Celotex 120mm is quick and easy to install therefore making it a great choice for building projects. XR4120 is just one of many products that make up the XR4000 range. Full application types of this 120mm 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)

120mm 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 XR4120 is one of our top-rated products? 120mm 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 120mm 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!


Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

120mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

XR4120

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.93kg/m2

Product Range

Celotex XR4000

Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

120mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

XR4120

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

4.93kg/m2

Product Range

Celotex XR4000

25 reviews for 120mm Celotex Insulation Board – XR4120 (2400mm x 1200mm x 120mm) 2.88m2

  1. Scott

    The product arrived in perfect condition

  2. Jesse

    perfect

  3. Daniel

    The insulation arrived earlier than I expected, which was a pleasant surprise.

  4. Larry

    best prices arround

  5. Benjamin

    This insulation material is a game-changer! Brilliant

  6. Lincoln

    Sales team helped me with this order

  7. Ryan

    requested a date in checkout that was very helpful

  8. Daniel

    my builder advised me 120mm Celotex is £60+vat a sheet, i found Trade Insulations who are half price than my local. Thank you

  9. Emily McCone

    Spoke to James who talked me through my order. Really helpful.

  10. William Conlon

    Delivery within 3 days, can’t complain.

  11. Jane

    I accidentally ordered this twice but your order got to me quickly on Monday. The other supplier still have not even got back to me let alone deliver it. Your service knocks them out the park.

  12. Wendy Kidd

    Driver was so nice and helped me with the board as the 120mm was a touch too heavy for me.

  13. michael morgan

    Delivered in 2 days, packaged well!

  14. Gillian herbert

    very helpful staff at Trade Insulations Ltd, delivered in 3 working days ready for our builders to finish off our roof.

  15. Louis Valentine

    Great Product but ordered 100 sheets and didn’t get a discount – was still best price I could find.

  16. Stu

    Website is easy to use with all information clearly laid out. Delivery was quick and appreciated the courtesy call after I placed the order to arrange delivery at the best time for me.

  17. Ben

    Ordered 120mm Celotex on here and the price was nearly a third cheaper than my builders merchants

  18. peter hodges

    best price I could find! really good service too

  19. kris

    ordered 20 sheets, all came on lorry with a forklift type thing, really happy with it. good job

  20. Claire Dolby

    Made an order 50 sheets, arrived 2 days later when they said it would. Driver was fantastic

  21. Dennis Hazel

    Used this for my flat roof. really good product to be fair

  22. Luke Simpson

    Ordered 20 sheets of 120mm Insulation Board, arrived in 2 days, will order more in 2 weeks.

  23. Jordan Jones

    Decent price and decent service

  24. Jamie Eswell

    Thanks Karl for your help, quick delivery of 120mm. Jamie

  25. John Ellis

    great product

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Please login to post questions

Question:

If I cut the celotex board in half does it affect the U value?

insulationadmin
08-Feb-2023

Answer:

As long as you keep the board 120mm thick (the same with any other size, you must keep the original thickness of the board) it will not change the thermal connectivity of the board

Question:

Who does the celotex prices keep increasing, will they be coming down soon?

insulationadmin
08-Feb-2023

Answer:

Celotex prices have been on the up since Covid-19 hit unfortunately. Trade Insulations has made sure the prices have been kept the lowest they can be through the past 3-4 years! To answer your question regarding prices coming down, we hope so, when? we aren't sure. Our prices are the lowest online and we continue to look after our customers!

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 XR4000 Datasheet
BBA Certfication - Timber Frame
BBA Certfication - Floors
BBA Certfication - Pitched Roofs
BBA Certfication - Dry Lining

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