Two site managers responsible for overseeing work at Grenfell Tower for refurbishment main contractor Rydon assumed the insulation material fitted around the block’s window areas was not a fire risk, the inquiry into 2017’s disaster has heard.

Gary Martin – who was a site manager on the project between July 2015 and March 2016 – said he believed the foil-backed material used to cover the gaps between the building’s original window frames and the new windows in its cladding was a “fire-resistant seal”.

…