Forty homes evacuated after Raac found

Forty households have been advised to evacuate after issues with reinforced autoclaved aerated concrete were found.

Housing association Trivallis said surveys found two properties at "critical risk" in Hirwaun in Rhondda Cynon Taff, but that 38 other properties have the same design.

Trivallis said it was finding temporary accommodation for those affected.

Raac is a lightweight material that was used in buildings between the 1950s and 1990s.

It is a cheaper alternative to standard concrete, and is quicker to produce, but it is aerated - or "bubbly", like an Aero chocolate bar - and is less durable with a lifespan of about 30 years.

Duncan Forbes, chief executive of Trivallis, said the company has "zero tolerance" for risks to tenant safety, "which is why we are advising people to move out of their homes as quickly as possible".

"Trivallis fully understands the gravity of the situation and the impact it has on residents. It is dedicated to addressing the immediate needs of those affected. We appreciate the understanding and co-operation of our residents and the community during this challenging time," he said.

The company added that while surveys continued on the property, tenants wishing to move immediately were being offered hotel accommodation, while others might want to stay with friends and family.

Trivallis describes itself as one of the largest housing association in Wales, providing more than 10,000 homes.

Last year, hundreds of schools in England, and dozens in Scotland, were found to have Raac, leading to many being partially closed.

Just a handful of schools were found to have Raac in Wales.