Flat roofs are often the cause of leaks as they are ‘out of sight, and out of mind’. Dampness can occur for many reasons including failure of the covering. The photo shows an extreme case of stagnating water, with the covering at immediate risk of failure.
Current regulations require flat roofs to be of “warm roof” construction. This consists of insulation laid consistently over a ply decking and a vapour barrier laid between the insulation and covering.
Warm roofs should be provided with ventilation, either via soffit vents or ventilation to the covering via vented tiles or mushroom vents.
Failure to do so can lead to condensation build up within the concealed structure which can damage the timbers and decking. Any replacements to roof coverings should be conducted by a reputable roofing contractor who is a member of a competent person’s scheme. If you have any concerns around your flat roof or a flat roof of a property you are interested in purchasing, please don’t hesitate to contact our friendly team who can help provide guidance.