Incorrectly installed loft insulation by a CIGA approved company obstructing the installed soffit ventilation, resulting in insulation becoming saturated causing and mould forming to the ceiling areas of the property, there were no issues affecting the property before the insulation was installed
Ensuring the ventilation is maintained within the loft is basic knowledge, this simply shows the lack of knowledge, training which is supposed to be picked up by the CIGA’s vetting system, unfortunately CIGA themselves are don’t have the basic knowledge to train or undertake the vetting of the installation companies.
http://www.dailymail.co.uk/news/article-4143922/1-5million-homes-blighted-damp-cowboy-builders.html