The collapse-prone material was found in the roof of Royal Oldham Hospital and has been previously likened to a ‘chocolate aero bar’, with more than 100 schools and colleges across the country also affected.
Reinforced autoclaved aerated concrete (RAAC) has now been removed from 20 hospitals in England, though 41 sites still contain the substance, figures show.
Concerns over the safety of RAAC, a lightweight material used widely in public buildings between the 1960s and 1980s, prompted a nationwide inspection in recent years of schools, hospitals, courtrooms and other structures, with risks identified at dozens of locations.
A scheme has been in place since 2021 to manage and remove RAAC from the NHS estate in England, to which £1.3 billion has so far been allocated.
The latest figures, the first for nearly a year concerning hospitals with RAAC, show several sites have had the substance removed in recent months.
However, Royal Oldham Hospital is still affected by the issue, and has not yet had a target date set for when its removal will be complete.
The Government has pledged to remove RAAC from every NHS building in England by 2035.
A further 12 hospitals are due to have Raac removed by the end of March 2026, though The Royal Oldham Hospital is not one of them.
Nadine Armitage, Director of Capital, Estates & Facilities at the Northern Care Alliance NHS Foundation Trust (NCA) said: “We are following national guidance to maintain the safety of patients and colleagues until all RAAC roofing is replaced.
“Patient and colleague safety are of paramount importance, and we continue to regularly review the planks in line with recommendations from The Institution of Structural Engineers and fix any issues that are found with the necessary action.”