Householders who complained of dampness following retrofit CWI were told that this could not possibly be a result of the insulation. They were told that pre-existing building defects must be to blame (even though the installer is supposed to have carried out a thorough pre-works survey to spot any such defects), or that the dampness was caused by “lifestyle condensation” (even though the occupants might have lived in the property for many years with no previous condensation problems).