It was installed on the council-owned Grenfell block in 2015 as part of a £10 million refurbishment by a company which was later liquidated after a firm they were working with refused to pay out in a dispute over their work.
Tens of thousands of buildings in the UK have been fitted with cladding, it is estimated, leading to calls for an immediate review of safety.
Experts said that the cladding - which is used to insulate the building - had acted like a "chimney" for the flames by allowing the fire to spread upwards through the gaps between the cladding and the building walls.
Residents had warned that the tower block was a "catastrophe" waiting to happen but their complaints "fell on deaf ears", they said yesterday.
Reg Kerr-Bell, the former chairman of the Kensington and Chelsea Tenant Management Organisation (KCTMO) - the body which manages the building - said he stood down several years ago over safety concerns.
Just two days before the blaze, he had spoken to a former colleague about their fears.
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