Between and Over Rafters

High performance PIR insulation boards for use between and over rafters.

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IMPORTANT: On 1 September 2017, Celotex took the precautionary measure to temporarily suspend the supply of Celotex FR5000, Celotex CG5000, Celotex CF5000 and Celotex SL5000 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. Due to this issue, the suspension of the 5000 range will continue and now includes the FI5000 and GD5000 products. Materials relating to the 5000 range products are for information only.  Please note that all products in the TB4000, GA4000 below 100mm, PL4000 and CW4000 ranges manufactured after 15 December 2017 will be marketed from January as Celotex 3000 with a declared lambda value of 0.023 W/mK.

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

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

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It can often be a difficult decision to insulate a pitched roof, as head room can be limited. To solve this issue, we recommend using a Celotex high performance solution in between and over rafter applications. Our PIR insulation will create a warm and habitable roof space, without the need to insulate water pipes and tanks.

Application Benefits:

  • Suitable for new build and major refurbishment projects
  • Minimised additional loading to the structure
  • Provides reliable long term energy savings for buildings

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Recommended Products

TB4000
1200 x 2400mm
12-40mm
0.022 W/mK

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FR5000 (Currently Suspended)
1200 x 2400mm
(Currently Suspended) 50-150mm
0.021 W/mK

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