Grenfell Tower cladding contractor Harley had a particular interest in using Reynobond ACM cladding cassettes on the ill-fated refurbishment project because it lessened the impact of a costing error for the job, it has emerged.

Reynobond PE 55 aluminium composite material (ACM) panels were used on Grenfell Tower in preference to a face-fixed version of the same product. It has subsequently become known that the cassette panels were significantly more combustible than the flat-panel ones, which would have been riveted on.