All window systems and glazing are certified by the biggest and most reputable German Agency ITF Rosenheim. It is an internationally acting scientific service provider and as testing institute specialist for evaluation of the fitness for use of construction products. ift Rosenheim performs testing of windows according to EN 14351-1, facades according to EN 13830, building materials and glass as well as fire safety tests according to EN 16034.This is a guarantee for quality and safety of our products.