News

Grenfell: Celotex actions ‘completely unethical’

Jonathan Roper

Action taken by Celotex at the time it was developing a marketing strategy for a new form of panel insulation that eventually ended up being used in the Grenfell Tower refurbishment were “completely unethical” the Grenfell Tower Inquiry has heard.

Former product manager Jonathan Roper agreed that it was “dishonest” to attempt to conceal the presence of magnesium oxide board used in a fire test of the RS5000 product, which was marketed as being suitable for use in buildings above 18m.

RS5000 initially failed a BS 8414 test (fire performance of external cladding) carried out in February 2014 and in order to ensure that it passed a second test in May that year, Celotex change the build-up of the system tested. The successful test used a system that at certain levels (adjacent to the Lamatherm fire barrier and at the top of the rig) used an 8mm Marley Eternit cladding panel, immediately behind which was a 6mm magnesium oxide board. 12mm Marley Eternit cladding panels were used on the remainder of the rig.

Register for free and continue reading

This is not a paywall. Registration allows us to enhance your experience across Construction Management and ensure we deliver you quality editorial content.

Registering also means you can manage your own CPDs, comments, newsletter sign-ups and privacy settings.

Story for CM? Get in touch via email: [email protected]

Latest articles in News