Sir Martin Moore-Bick’s phase 1 report into the Grenfell Tower fire is now available to view here: www.grenfelltowerinquiry.org.uk/phase-1-report
The following paragraph is featured on p24, 34.12:
Suggestions have been made that the smoke extraction system failed to operate in accordance with its design and even contributed to the spread of smoke between different floors of the building. Systems of this kind are an integral part of the fire safety measures in most, if not all, high-rise buildings. Although the system at the tower was designed to operate on only one floor and was not intended to deal with smoke extraction on multiple floors at the same time, it is important to understand whether, in this case, it was capable of operating in accordance with its design and whether it did so. These questions will therefore form part of the investigation in Phase 2.