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Types of glazing and their specific values

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ill not good enough ==== Significant progress is possible by a scientific development made by Prof. Glaser ... of the type of heating supply. That this was made possible, is due in considerable part to the the improved

PHI window certification: previous success and new climate zones @planning:thermal_protection:windows:window_certification

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and, on the other hand, no direct solar gains are possible through the frame. From the parameters U<sub>f</s