prEN 13420

Windows - Behaviour between different climates - Test method

Scope

This European Prestandard specifies the test methods for evaluating: the risks of decay of windows manufactured of different materials through increased moisture accumulation as a result of condensation or water vapour diffusion; the influence of deformation on basic performances of windows manufactured of different materials exposed to different climates between their external and internal faces. Three test methods are to be differentiated. They take into account different cases of loadings.