More than 2,000 homes with RAAC - a concrete prone to collapse - could be demolished across Britain, Sky News has been told. The vast majority of these are in Scotland. Fiona and Jimmy Vallance have lived in their two-bedroom former council flat in Scotland for 40 years - then they were given two hours' notice to leave the property they owned. The couple find themselves in the middle of a concrete crisis causing financial turmoil and emotional devastation for homeowners.

Sky News has been told more than 2,000 homes with collapse-risk RAAC could be demolished across Britain, with the vast majority in Scotland.

"It's just been a complete, utter nightmare," says Ms Vallance, sobbing as she recalls talks about being referred to mental health medics.

"This is actually worse than a death. At least if somebody died in your family, you can have a few months to get over it. This never goes away." The couple, who are aged 59 and 63, finally paid off their mortgage for the flat in Clackmannanshire in 2013. It was a huge moment of personal achievement. But everything changed in October last year, when, as they recalled it, a chap at the door one evening gave them two hours' notice to leave their property and never return. Engineers, he said, had discovered their roof could cave in.

Barely able to hold a conversation, the couple now sit clutching each other's hands as they agreed to talk to us about their harrowing, ongoing ordeal.

They are surrounded by boxes in the homeless accommodation they have lived in ever since.

Broken, they are ravaged by the pain of their lives being thrown up in the air.

"I wake up in the morning crying," says Ms Vallance.