Who should pick up the bill for these broken homes?
When mica combines with moisture, it can cause the blocks to degrade  On May 1, Paddy Diver noticed that his neighbour was having concrete delivered by a Cassidy Brothers truck. Only the previous day he had been told his own house, built with blocks supplied by Cassidys, would have to be demolished because it was blighted with mica. Cassidy Brothers suspects that up to 80 per cent of the 5,000 homes in Donegal that, like Divers, are suffering severe cracking and structural faults may have used its blocks, which were later found to contain mica. When this substance combines with moisture, it can cause the blocks to degrade. Sponsored  I knew the neighbours were getting concrete but I never thought for one second they would get Cassidys, Diver recalled. Furious, he jumped into his jeep, blocked his neighbours