They said removing concrete roof planks would remove "the risk of collapse". If councillors approve the work on 7 November, it is expected to be completed by August 2023.

An update on properties that have roof planks constructed using Reinforced Autoclaved Aerated Concrete (RAAC) - also known as siporex - has been presened to councillors.

1994: Concerns about the risks of using RAAC in public buildings started to appear in research. 1996: Excessive cracking and corrosion was found in some roof planks that had been designed before 1980.

15:52, 15 Aug 2023 More than £3m will need to be spent in the next few months to remove crumbling roof planks from parts of St Kentigern’s Academy (Image: Stuart Vance/ReachPlc) ...

Councils have been told to check for problems caused by a now disused roofing system after a roof collapsed within 48 hours of problems being noticed. Reinforced autoclaved aerated concrete (RAAC) was ...