A 2008 certificate issued by the British Board of Agrément (BBA) for Kingspan K15 insulation was based on data “extrapolated” from fire test reports on similar Kingspan phenolic products, some of which were 15 years old, in a “basic failure of due diligence” the Grenfell Tower Inquiry has heard.

An updated British Board of Agrément (BBA) certificate issued for Reynobond 55 cladding was “materially wrong”, after the BBA struggled to obtain information from manufacturer Arconic about the product.

A marketing manager at Arconic, the company that manufactured the combustible Reynobond PE 55 cladding used on Grenfell Tower, received a “very high shock” after attending a 2007 presentation warning of the combustibility of polyethylene-cored (PE) ACM cladding, the Grenfell Tower Inquiry has heard.

Vertical cavity barriers installed behind the cladding of Grenfell Tower during its refurbishment were so poorly installed that they were “totally ineffective” and non-compliant, the Grenfell Tower Inquiry has heard.…

A former Herefordshire Council building control survey claims he was “misled” by Kingspan and BBA documents when he issued an approval certificate for Kingspan K15.

A BRE director does not recall the organisation following up on a “wholly inaccurate” certificate issued by Herefordshire LABC that gave automatic acceptance for cladding systems employing Kingspan’s combustible K15 insulation on buildings over 18m in height.

The former BRE manager who oversaw the 2014 fire tests of Celotex’s RS 5000 insulation within a cladding system has denied he knew the rig was “manipulated” to achieve a pass after it failed its first test.

Arconic withdrew its combustible Reynobond 55 PE cladding from the market for high-rise buildings after the Grenfell Tower disaster because it felt it “couldn’t control the whole of the supply chain”, the Grenfell Tower Inquiry has heard.

Kingspan has used its financial results for 2020 to unveil a series of actions it is taking in response to “serious issues” that have arisen from the Grenfell Tower Inquiry process.

Arconic took no action following a 2009 cladding fire in a Bucharest building because there was no injury, the Grenfell Tower Inquiry has heard.

It is hard to quarrel with the aims of the Construction Playbook, but focusing on value for money over lowest cost may not be straightforward, says Paul Morrell

Arconic told a “misleading half truth” when it presented only European fire test results for its Reynobond 55 PE cladding in rivet form, the Grenfell Tower Inquiry has heard.

Arconic regarded the stoppage of a test on its Reynobond 55 PE cladding in cassette variant as a “rogue result”, the Grenfell Inquiry has heard.

Arconic removed details that showed that the cassette variant of its Reynobond 55 PE cladding no longer confirmed to Class B in European fire tests from marketing literature, the Grenfell Tower Inquiry has heard.

The UK sales manager for Arconic, the firm that supplied the Reynobond ACM 55 PE cladding used on Grenfell Tower, did not discuss the combustibility of the products she was marketing with clients, the Grenfell Tower Inquiry has heard.

Kingspan workers were instructed to allow changes proposed by the British Board of Agrément (BBA) to the fire certificate for the K15 insulation product to “gather dust”, the Grenfell Tower Inquiry has heard.

The Grenfell Tower Inquiry aims to resume hearings on 8 February. The hearings had been due to restart in January after a Christmas break but the decision was taken not…

The Grenfell Tower Inquiry has been suspended following the announcement of new coronavirus restrictions. The Inquiry had been due to resume hearing oral evidence on 11 January after a Christmas…