Concerns have been raised over the cladding at a student accommodation building in Bolton where a fire spread “extremely rapidly”, gutting the upper floor. An investigation is under way… and calls are growing for an overhaul of UK fire safety regulations. Grenfell United, the group of survivors of the Grenfell Tower fire in 2017, called for the declaration of a national emergency over the lack of action. …Witnesses said … a small fire ripped through the upper part of the six-storey building, which is cladded in high-pressure laminate (HPL) material, “within minutes”. The government’s response to the cladding scandal has largely been confined to aluminium composite material (ACM) panels, but there could be thousands of blocks with HPL. …HPL panels, which can be made of compressed paper or wood fibre, have a variety of combustibility ratings, while combustible ACM panels were banned last year for use on new tall residential and public buildings following post-Grenfell investigations.