Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

40mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

TB4040

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.41kg/m2

Product Range

Celotex TB4000

Useful Information
40mm Celotex is a multi-purpose board and can be used for all applications

40mm Celotex Insulation Board – TB4040 (2400mm x 1200mm x 40mm) 2.88m2

(6 customer reviews)
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Useful Information
40mm Celotex is a multi-purpose board and can be used for all applications

Celotex 40mm PIR Insulation Board

Celotex TB4040 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. 40mm Celotex is easy to handle and boasts excellent thermal qualities. This is a reason why the TB4040 40mm Celotex PIR board is so popular. Celotex TB4040 forms part of the TB4000 range. The Celotex brand is a part of the Saint-Gobain family. Saint-Gobain is a leading manufacturer of insulation boards. The Celotex TB4000 range is at the very core of the Celotex product range. This makes the TB4040 (40mm Celotex) variation a leading choice in construction projects.

Celotex 40mm insulation boards are made from rigid polyisocyanurate (PIR). TB4040 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 40mm 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 40mm 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 40mm Celotex PIR board boasts outstanding performance when used in timber frames and masonry walls. 40mm Celotex insulation board has a thermal conductivity rating of 0.022W/mK. In addition to this, the TB4040 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 TB4040 board rates great for environmental performance. This means not only is 40mm Celotex better for the planet, but it can also help provide long-term energy savings.

Celotex 40mm 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

TB4040 Application

40mm 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. 40mm Celotex is manufactured in accordance with quality management systems (BS EN ISO 9001:2000). Celotex 40mm is quick and easy to install therefore making it a great choice for building projects. TB4040 is just one of many products that make up the TB4000 range. Full application types of this 40mm 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)

40mm 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 TB4040 is one of our top-rated products? 40mm 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 40mm 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

40mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

TB4040

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.41kg/m2

Product Range

Celotex TB4000

Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

40mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

TB4040

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.41kg/m2

Product Range

Celotex TB4000

6 reviews for 40mm Celotex Insulation Board – TB4040 (2400mm x 1200mm x 40mm) 2.88m2

  1. James

    5 star product will use again

  2. Michael Nickson

    Quick delivery

  3. Loft Doctors (Wales)

    Very happy with my online purchase of Celotex, usually use 50mm Celotex but always 5mm to big. 40mm is perfect for internal walls.

  4. Mikey Saunders

    Best Price I could find on 40mm Celotex

  5. Ethan McClean

    Now my absolute go to for insulation, cannot fault this company.

  6. dave barker

    quickly despatched, on time to site, really easy and quick buying system, no hassle, can’t thank trade enough for getting the stock to me and saving me lots of money on this bulk order!

    will definitely be shopping again for the next project

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Please login to post questions

Question:

Can I use a 40mm Celotex board and 12.5mm plasterboard to make my own 52.5mm Insulated plasterboard?

insulationadmin
08-Feb-2023

Answer:

Short answer, Yes you can, But... and its a big but... If you decide to 'make' your own Celotex insulated plasterboards obviously its going to be labour intensive. You will have to mechanically fix the plasterboard and rigid board on the wall/ceiling (making sure it lines up and her in mind it has no vapour barrier) . That's 2 boards, where as the 52.5mm Celotex insulated plasterboard is already laminated to the plasterboard creating a 2-in-1 board that is much easier to use. Check out our Celotex insulated plasterboard pages for more information and prices.

Question:

I'm insulating my loft with 40mm Celotex, do I need to use aluminium foil tape for the edges and gaps?

insulationadmin
08-Feb-2023

Answer:

Yes, we recommend to tape all exposed air gaps and parts of any scuffed boards. This will ensure that any cold air isn't able to enter through the seams and no warm air can escape.

Question:

I want to use 40mm Celotex for my garden room, is it enough or should I go thicker?

insulationadmin
08-Feb-2023

Answer:

We always say, make sure you check with your architect/engineer/builder/plans. However, we understand that some people haven't got any of those and want to insulate themselves. My answer to this would be, Go as thick as the build allows you to go (if you can fit 60mm in then use it) and make sure you stay within budget.

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 TB4000 Datasheet
BBA Certfication - Timber Frame
BBA Certfication - Floors
BBA Certfication - Pitched Roofs
BBA Certfication - Dry Lining

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