Important Information: For all updates and Celotex announcements regarding testing, lambda values or rainsreen cladding and RS5000 Celotex Announcements

Important Information: For all updates and Celotex announcements regarding testing, lambda values or rainscreen cladding and RS5000, please see the links below....

Declared lambda values - Read more >

5000 Class 0 testing - Read more >

Rainscreen cladding & RS5000 - Read more >

Celotex SL5000

Premium performance concrete soffit liner solution

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IMPORTANT: On 1 September 2017, this product (among others) was temporarily suspended while we investigate the results of recent tests (Parts 6 and 7 of British Standard 476). In addition, we have recently identified a compliance issue relating to our calculation and testing of the declared lambda value of products in the 4000 and 5000 ranges and the Crown-Bond and Crown-Fix products within the Crown Flat Roofing range. Materials relating to this product are for information only.

Please use the link below to read our full statement regarding declared lambda:

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Please use the link below to read our latest statement regarding Class 0:

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Celotex SL5000 is a premium performance concrete soffit liner solution, utilising thermal performance properties of Celotex PIR insulation bonded with calcium silicate to provide additional fire performance. Featuring a super low lambda value of 0.021 W/mK, SL5000 ensures Regulatory compliance is achieved with minimal insulation thicknesses.

  • Board size: 1200 x 2400mm
  • Thickness : (Currently Suspended) 86 - 106mm
  • Lambda: 0.021 W/mK
  • Facer: 6mm calcium silicate bonded to foil facer

Celotex SL5000 provides on-site benefits too, significantly reducing installation times due to the insulation and calcium silicate being supplied as one product. Delivering greater impact resistance compared to exposed insulation systems, SL5000 provides a decorative finish with no need for on-site decorating. SL5000 is supported by the Celotex Technical Centre and Thermal Bridging Models.