The test methods, according to the standard SR EN 14351-1:A2:2016, are designed to take into account the ideal conditions of use when the window is manufactured, assembled and used in accordance with the manufacturer’s requirements and European standards requirements.
It is important to remember that a window that does not meet the arrangement of closing items according to the technical catalogue, or is incorrectly installed and handled, will fail to meet the parameters of the laboratory tests because it does not meet all the conditions specified above.
The performance achieved in the tests by the window IzoKlass – powered by KÖMMERLING is the best in all categories. Water tightness, wind load resistance and air permeability place this window in the highest performance class.
By using the series IzoKlass – powered by KÖMMERLING – you invest in a premium window, the quality of which is guaranteed by the outstanding test results!