celotex tb4000 insulation board

Celotex TB4000 Insulation Thermal Break Board

Celotex TB4000 Insulation is a multi-purpose PIR insulation board. Thermal break Celotex insulation is designed for eliminating thermal bridging in pitched roofs and flat roofs. When installing as roof insulation this is generally done by placing a layer over the entire roof timbers after using Celotex GA4000 or XR4000 cut to fit in between rafters. An alternative to doing this can be to use an all in one solution such as Celotex PL4000 insulated plasterboard.

Also Celotex TB4000 can be used for the up-stand perimeter insulation in floor insulation projects to cancel any potential cold bridging in the floor. When used in floors TB4000 is usually cut into strips the depth of the insulation and the screed thickness added together, then inserted around the edge of the floor. The entire floor is then covered in DPM and concrete screed poured into what is the effect an insulation bowl.

Especially relevant Celotex TB4000 is available in board thicknesses from 20 mm – 40 mm deep. 20 mm makes Celotex the thinnest PIR insulation board of this type that you can buy on the market at the time of writing.

If our special offers do not match your needs or for any further information on Celotex TB4000 or any other products you may require, please do call our friendly sales team in our national sales office who will gladly help.

Celotex TB4000 Insulation Board

CODE: TB4000
SPECIFICATION: 20mm – 40mm
SIZE: 2400 x 1200 Sheets
PRODUCT INFORMATION: Celotex Information

celotex special offerCelotex Insulation board
Price Per Sheet
Thick: 25mm
Only £11.85 + vat
Free delivery over £300 ex VAT
Quote: CEL025

celotex insulation special offerCelotex Insulation board
Price Per Sheet
Thick: 40mm
Only £16.75 + vat
Free delivery over £300 ex VAT
Quote: CEL040

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Awesome guys sorted me out when i didnt have a clue what to order top geezers

Badders, Holy smoke Vape store

Fantastic Company. Helped with the order from start to finish. Even had an issue my end with the payment and they couldn’t be more helpful.

Mike Reynolds

Excellent company, Jason gave us a really good price and the items were delivered 2 days later much quicker than anyone else could offer. even the delivery driver was incredibly helpful, honestly can’t fault them Jacqui

Jacqueline Jelley,

Very happy with the service we received. Fantastic product at a fantastic price. Cant recommend Jason and the team highly enough. Ordered during Covid-19 when everything was slightly crazy and delayed and Jason called and said they had a lorry in our area so could deliver the very next day! Thank you guys for 5 star service, will be back in the future . All the best, Lacey. Travellers Finds Ltd

Lacey Griffiths, Travellers Finds Ltd

Good for cheap insulation, i bought some celotex from them and it was delivered last week, it was a lot cheaper than anyone else in my area. i’m very happy with this service.

Rav Kumar

Top Service From quote to delivery can’t get any better thanks

C Lewis, C Lewis Building

Good price, good product great service. Thank you

Julie Rhodes,

As a small building company we find that BMD will equal or beat our trade depot plus we get free delivery too !!, Also we can get everything in one order and being able to talk to an actual person rather than clicking on a website means we get the service we want. saves time and money whats not to like ? :-)

Clemency Bedford, Bedford Building Maintenance

Great service, goods supplied on time , very satisfied

Alan Gibbs

After days of trying to order some Rockwool from suppliers who never got back to me or quoted silly prices, my enquiry to BMD was answered in minutes politely and with clear knowledge of the products and delivery arranged on the phone all at a great price. Top marks for A1 service and product knowledge.

Rich Jenn

Thanks for my order great service

Yanislav Molkiva,

Purchsed our floor and wall insulation from this company, they are very helpful and went through the options available to me. after searching about the total price was the best i had so i gave them the order. Deliervy was made in 2 days and everything was fine. I will use them again for the next part of my building project.

James Kergan, JK Building services

Nice to deal with, quick delivery and cheap prices.

Simon Berrinfield

Excellent price and delivery what more can i say , keep it up BMD


Ordered Celotex insulation from this company for the first time last week and I will definately be back again. Good price and delivery 2 days later thankyou.


Matt Chapman, MC Construction

Thanks for saving my bacon with next day delivery will be back when I need some more Insulation.

Scott Ainsdale, SA Electrical

As described quick delivery and good condition thankyou

Nick Wilson

Ordered online as it was the weekend , recieved a call to arrange delivery day on the Monday morning . all goods arrived in great condition and on the day they said.

Sue Brenner, Holistic regen

Dont normally leave reviews but they helped me with products through out my selfbuild and saved me a lot of money

Ady Moon, Moon Building