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Allan said he had accepted that he had lost his money, but when his family tried to call the roofers to try to get the scaffolding down, they did not respond.

The 52-year-old roofer said trying to get through to someone to argue his case had been like "talking to a brick wall" and he would now take legal action against bosses.

His father worked near the contaminated site as a roofer, and his pregnant mother often visited him there.

Jones told the court he was friends with Sheen and that he worked as a roofer and general builder for Sheen's building firm.

One of their current clients, roofer David, had been sleeping in a shed for six months after breaching the terms of his tenancy agreement.