Following a deadly residential tower fire in London, Australian authorities have been told an audit of high-rise buildings with cladding is needed to ensure the material is fire-retardant. While investigators say it is too early to determine the cause of the blaze in which at least 12 people died, residents have blamed new aluminium composite cladding – installed to make the building more energy efficient – for aiding the fire’s rapid spread. “We need to have an audit of all high-rise buildings which have cladding to ensure that it’s fire-retardant, meets Australian standards or, if it’s not, it needs to be removed,” independent senator Nick Xenophon told Sky News on Thursday. A Senate committee has been investigating the use of non-conforming building materials and is due to finalise a report by October. Charred cladding remains after London’s Grenfell Tower block was destroyed by fire on Wednesday.Credit:AP ▪ Wood, metal, brick, vinyl, composite materials that can include aluminium, wood, blends of cement and recycled polystyrene, wheat/rice straw fibres. ▪ There is potential for fire to spread quickly upwards in a building if in...