celotex xr4000 insulation board

Celotex XR4000 Insulation Board

Celotex Insulation XR4000 board is the range of multi-purpose insulation boards that Celotex make in sizes thicker than 100 mm. This is the code Celotex give their ‘Extra Resistance’ board due to the thickness of the insulation board. Produced using a PIR foam sandwiched between 2 layers of low emissivity foil facings. These Low E foil facings emit low levels of radiant thermal energy (heat). This type of insulation board is mainly used in ‘cut to fit’ roof applications such as between roof rafters and floor joists. In addition Celotex can be used for over joist flat roof applications when used alongside suitable plywood or OSB sheet materials. Furthermore Celotex insulation XR4000 is also suitable for use for under slab floor insulation and partition wall insulation.

Generally the XR4000 sheets of insulation are used in conjunction with Celotex TB4000 thermal break insulation. In floor insulation projects this thinner board would be used as a perimeter up stand to prevent cold bridging through the walls into the floor. Also when insulating a loft Celotex TB4000 would be used to eliminate cold bridging situations by covering the underside of the roof timbers.

This Insulation board meets the current and future requirements of ( part L) of building regs. plus the code for sustainable homes and it is also currently available in thicknesses from 110 mm-200 mm. Importantly Celotex manufacture this insulation board using a blowing agent that has a low global warming potential and zero ozone depletion potential.

Buy Celotex XR4000 wall , loft and floor Insulation

CODE: XR4000
SPECIFICATION: 110mm – 200mm
SIZE: 2400mm x 1200mm

celotex xr4000 special offerCelotex Insulation board XR4000
Price Per Sheet
Size: 2400 x 1200
Thick: 120mm
Only £37.50 + vat
Free delivery over £300 ex VAT
Quote: CEL120

celotex xr4000 special offerCelotex Insulation board XR4000
Price Per Sheet
Size: 2400 x 1200
Thick: 150mm
Only £45.75 + vat
Free delivery over £300 ex VAT
Quote: CEL150

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Lacey Griffiths, Travellers Finds Ltd

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

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.

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Clemency Bedford, Bedford Building Maintenance

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C Lewis, C Lewis Building

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.

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


As described quick delivery and good condition thankyou

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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.

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