Celotex and Grenfell Tower: Updates and information

The Grenfell Tower fire in June 2017 was a terrible tragedy. Celotex, and the Saint-Gobain Group, reaffirm their deepest sympathies to everyone who has been and continues to be affected by the fire.

This site provides information on Celotex’s RS5000 product and on Celotex’s participation in the Grenfell Tower Inquiry.

The Inquiry hearings concluded with closing statements in November 2022 and the Inquiry is expected to publish its Phase 2 report in 2023. Celotex, with the support of the Saint-Gobain Group, has cooperated fully with the Inquiry in order to find out what happened and to ensure it does not happen again.

Since the Grenfell Tower fire, Celotex has undertaken a review of its process controls, quality management and approach to marketing to address issues discovered as part of its investigations following the Grenfell Tower fire and ensure that no such issues reoccur. Celotex recognises that this is an ongoing process. It is committed to continuous improvement.


Celotex announcement – RS5000 BS 8414-2 Test – 30th January 2018

Statement regarding differences between RS5000 system as tested and as marketed

Categories: Historical Statements, RS5000

In 2014, Celotex launched the PIR rigid board insulation product RS5000 for use in rainscreen cladding systems for buildings above 18m. In advance of the product being launched, the company commissioned full system fire performance tests for a rainscreen cladding system which were carried out pursuant to BS 8414:2.

RS5000 was used as external insulation as part of the rainscreen cladding system in the refurbishment of Grenfell Tower. We took the decision to suspend supply shortly after the tragic fire at Grenfell Tower and this suspension remains in place.

The company has been conducting a detailed review of the way RS5000 was tested and marketed. The current management team has only recently determined that there were differences between the system as tested for BS 8414:2 and the description of that system in the report of the test. These differences were carried through into our marketing of RS5000.

Our priority is to establish whether there are any safety issues arising from these differences. We have notified the relevant bodies and are taking steps to speak with our customers. We understand that in August 2017, a sample of the same product was used in a full rainscreen cladding system that passed the DCLG 1 test 2. Nevertheless, we are arranging further testing which will assist in clarifying the issue.

It is a matter of real regret for us that this issue has arisen: we fully recognise its potential seriousness and that it will give rise to concern. We are working hard to arrange the further testing as quickly as possible and we will make a further announcement once the results of that testing are available.

1  Now known as the Ministry for Housing, Communities & Local Government.
2  BS 8414-1

Grenfell Tower: Celotex is to stop the supply of RS5000 for use in rainscreen cladding systems in buildings over 18m tall – 23rd June 2017

Statement regarding suspension of RS5000 for rainscreen cladding systems in buildings over 18m tall

Categories: Historical Statements, RS5000

Celotex is shocked by the tragic events of the Grenfell Tower fire. Our thoughts are with everyone affected by this devastating human tragedy. We have been supplying building products for over forty years and as a business our focus has always been to supply safe insulation products to make better buildings.

We want to do everything that we can to support the Government’s ongoing response to the tragedy. We continue to offer our full cooperation with the investigations.
Celotex notes the comments made by Scotland Yard at this morning’s briefing in respect of the insulation used in Grenfell Tower. In view of the focus on rainscreen cladding systems and the insulation forming part of them, Celotex believes that the right thing to do is to stop the supply of Celotex RS5000 for rainscreen cladding systems in buildings over 18m tall with immediate effect (including in respect of ongoing projects), pending further clarity.

Celotex manufactures and supplies the insulation product RS5000 for use in multicomponent rainscreen cladding systems for buildings over 18m tall.  Safety testing was undertaken on RS5000 as part of a particular rainscreen cladding system and this is described in documents available on our website. As noted in those documents, any changes to components of the cladding system or construction methods used need to be considered by the relevant building designer.
Given the developments of the past twenty four hours, we wish to discuss with the authorities how we can restore confidence in the products that we supply to the above 18m market.

At this early stage, it would not be appropriate for Celotex to make any further comment at this time.

For all media enquiries please call: 07387 411972

Update – Friday 16th June 2017

Statement immediately following Grenfell Tower Fire regarding use of RS5000

Categories: Historical Statements, RS5000

As with the rest of the nation our thoughts continue to be with those affected by the terrible fire at Grenfell Tower in London. On Wednesday, as soon as we were able to, we confirmed that our records showed a Celotex product (RS5000) was purchased for use in refurbishing the building. We wanted to provide an update to that statement and provide further information as we are able to.

It is important to state that Celotex manufacture rigid board insulation only. We do not manufacture, supply or install cladding. Insulation is one component in a rainscreen system, and is positioned in that system behind the cladding material.

As we previously stated, our records show a Celotex product (RS5000) was purchased for use in refurbishing the building. This product has a fire rating classification of Class 0, in accordance with British Standards. Celotex RS5000 is the insulation component specifically tested as part of a system to British Standard BS8414-2:2005. When the system is designed and installed in line with this, RS5000 meets the criteria set out in BRE Report BR 135 ‘Fire performance of external thermal insulation for walls of multi storey buildings.’

We will of course assist the relevant authorities fully with any enquiries they have.

Update – Thursday 15th June 2017

Statement immediately following Grenfell Tower Fire

Categories: Historical Statements, RS5000

Our thoughts are with those affected by the terrible fire at Grenfell Tower in London. Our records show a Celotex product (RS5000) was purchased for use in refurbishing the building.

Full technical information on all of our products is available here on our website. If required, we will assist with enquiries from the relevant authorities at the appropriate time. Due to the nature of this developing situation it would be inappropriate for us to comment or speculate further on this tragedy.