Which schools in Scotland have RAAC and why haven't they closed?
BBC By Nichola Rutherford
BBC Scotland News
Questions have been raised about the safety of some school buildings in Scotland after it emerged that 35 have been found to contain potentially dangerous concrete.
In England, more than 100 schools were told to shut buildings with reinforced autoclaved aerated concrete (RAAC) days before the start of term.
It led to a scramble to find alternative temporary classrooms, with some schools reintroducing online learning, amid fears the concrete could collapse.
In Scotland, some school buildings containing the material are also closed but others remain open and are checked regularly.
First Minister Humza Yousaf has insisted appropriate safety measures are in place in Scottish schools and there is no immediate risk to pupils or staff.
Which Scottish schools have RAAC in Scotland?
Media caption,
Architect Colin Meikle explains what RAAC is, what the problem with it is, and why and when it was used
RAAC has been described by one expert as "like a concrete Aero bar" and was used in construction between the 1950s and 1990s.
