School buildings in England made with a certain type of concrete prone to collapse will be immediately closed over safety fears, the government has announced.

Around 104 schools or “settings” will be disrupted on top of 50 that have already been affected this year.

The Department for Education (DfE) said the vast majority of schools and colleges “will be unaffected” – but Labour criticised the move as a “staggering display of Tory incompetence”.

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The type of concrete forcing the closures is Reinforced Autoclaved Aerated Concrete, known as RAAC.

It is the same type of concrete that has been found in some hospitals that have been deemed to be unsafe, prompting Health Secretary Steve Barclay to fast-track them into the government’s hospitals-building programme.

Education Secretary Gillian Keegan told reporters that 156 schools had been identified as containing RAAC.

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Of those, 104 have been assigned a caseworker and surveyors will be sent to inspect them.

“We’re taking a very safety-first approach and we’re really being cautious here,” she said.

“The first thing we’ll do is we’ll identify where the RAAC is, so some children will be moved to a different part of the building, some of the buildings will be propped up, so the roofs will be propped up, some of them will be having temporary classrooms,” she said.

Ms Keegan urged schools to get in touch with DfE if they were concerned, but added: “If you don’t hear then don’t worry about it – this is something that is isolated to those 156 schools.”

She said “at some point” the department would produce a list of all the schools that had been affected.

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Labour’s shadow education secretary Bridget Phillipson said the government was “failing” children by needing to close schools just before the new term started.

“This is an absolutely staggering display of Tory incompetence as they start a fresh term by failing our children again,” she said.

“Dozens of England’s schools are at risk of collapse with just days before children crowd their corridors. Ministers have been content to let this chaos continue for far too long.

“It’s long past time the secretary of state got a grip on her department.”

Paul Whiteman, general secretary of school leaders’ union NAHT, also said the “news is shocking, sadly it is not hugely surprising”.

“What we are seeing here are the very real consequences of a decade of swingeing cuts to spending on school buildings,” he said.

“The government is right to put the safety of pupils and staff first – if the safety of buildings cannot be guaranteed, there is no choice but to close them so urgent building work can take place.

“But there is no escaping the fact that the timing of this couldn’t be worse, with children due to return from the summer holidays next week.”

What is Reinforced Autoclaved Aerated Concrete?

Reinforced Autoclaved Aerated Concrete – handily shortened to RAAC – is essentially a lightweight form of concrete.

It was used to build roofs, schools, colleges and other buildings from the 1950s until the mid-1990s, according to GOV.UK.

In comparison to traditional concrete, RAAC is weaker. It is made in factories using fine aggregate, with chemicals to create gas bubbles and heat.

Both the material properties and structural behaviour differs significantly from traditional reinforced concrete.

In 2019, the Standing Committee on Structural Safety highlighted the significant risk of failure of RAAC planks.

Three years later in 2022, the Office of Government Property sent a safety briefing notice to all property leaders, saying that “RAAC is now life-expired and liable to collapse”.

Chris Goodier, professor of construction engineering and materials at Loughborough University, said: “It is RAAC from the 1950s, 60s and 70s that is of main concern, especially if it has not been adequately maintained.

“RAAC examples have been found with bearings (supports) which aren’t big enough, and RAAC with the steel reinforcement in the wrong place, both of which can have structural implications.”

Kevin Bentley, senior vice-chairman of the Local Government Association, said the timing of the announcement meant schools and council had been left with “very little time to make urgent rearrangements and minimise disruption to classroom learning”.

He called on the government to urgently set up a task force to tackle the issue and to provide councils with further funding and technical expertise to repair or replace buildings with RAAC.

The DfE said the majority of the school sites would remain open for face-to-face learning and only specific parts of buildings closed where RAAC is used.

It said a minority will need to either “fully or partially relocate to alternative accommodation” while mitigations are put in place.

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Some hospitals deemed ‘unsafe’ because of RAAC

The department said the government has been aware of RAAC in public sector buildings since 1994 but the issue came to light in 2018, when a roof collapsed at a Kent school.

That year the DfE published guidance for schools stating the need to have “adequate contingencies” in the event of evacuations caused by concerns over the use of RAAC.

In June this year, the National Audit Office (NAO) said a school collapse in England that causes death or injury was “very likely” – but that the government did not have sufficient information to manage “critical” risks to the safety of pupils and staff.

Around 24,000 school buildings – more than a third of the total number in England – are beyond their estimated design lifespan – with school leaders branding the scale of building safety issues “shocking”.

Questions were also raised about the state of UK hospitals after Mr Barclay said that five new sites would be added to the government’s programme to build 40 new hospitals because the presence of RAAC made them unsafe to operate “beyond 2030”.

Five new sites – Airedale General in Keighley, Queen Elizabeth Hospital in King’s Lynn, Hinchingbrooke near Huntingdon, Leighton Hospital in Cheshire and Frimley Park in Surrey – were added to the programme as a priority.

Is your school being closed down or has it already been closed due to RAAC? Are you concerned about the problem at your school? Contact us at Sky.today@sky.uk

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