All council-run schools in the Royal Borough of Windsor and Maidenhead responded to government requests for information on dangerous concrete in buildings, the council has confirmed.

It comes after a Catholic school in Ascot – not run by the council – has had to move classes to marquees after the dangerous RAAC concrete was found in its building.

The government told more than 100 schools to close after they were found to contain reinforced autoclaved aerated concrete. This form of concrete contains tiny holes that make it more brittle, and allow water in that can cause metal bars inside them to rust.