This week the Inquiry heard that cladding similar to that installed on Grenfell Tower underwent a “catastrophic” fire test 16 years earlier. Sarah Colwell, Director of Fire Suppression Testing and Certification for the Building Research Establishment (BRE), described the speed of flame spread as “shocking”. We also heard that the BRE failed to alert the industry about widespread and potentially dangerous misinterpretations of building regulation guidance.

Presenter: Kate Lamble Producers: Nathan Gower and Sharon Hemans Researchers: Ben Henderson and Marcia Veiga Studio Mix: Gareth Jones Editor: Hugh Levinson