Shocking research has revealed that more than two-thirds of the social housing stock in Northern Ireland surveyed has cavity wall insulation that is not compliant with current industry standards.

A survey carried out by certification body Consultancy, Investigation and Training (CIT) of more than 800 Northern Ireland Housing Executive properties found that 63% had cavity wall insulation that was non-compliant and only 16% of social housing stock in the region was defect-free.

Of the 100 privately owned homes surveyed by CIT 36% had cavity wall insulation installations that were non-compliant with current industry standards and 41% of the stock was free of defects.