Water proofing for slope roofs
![](/assets/upload/Hidroizolacija domik.jpg)
Waterproof films are used to protect the building structure from adverse atmospheric factors –snow, rain and formation of condensation. Waterproof films can be classified into two sub-groups: simple waterproof films and waterproof films with anti-condensation layer – the so-called anti-condensate films.
Simple waterproof films are usually reinforced polyethylene films laid on non-insulated roofs, in well-ventilated attics and sheds. Their main task is to collect water dripping from the roof and direct it away from the building into the gutters. Anti-condensate films are applied in pitched ventilated roof constructions for waterproofing purposes under roof surfaces with large amounts of condensation. Anti-condensate films are particularly recommended under metal roofs.
When applying a waterproof or anti-condensate film in roof constructions, an air gap must be left both above and below the film. These films should never be placed close to heat insulation.