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Types of glazing and their specific values

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ing on very cold days are about 7.5 °C. There are no frost patterns any more, but the window surface i... re does not fall below 17°C.** * Thus, there is no perceptible "cold radiation" from the window. * Besides, there is no uncomfortable air temperature stratification in the room, even if there is no radiator underneath the window. Of course, this r

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

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U-value than the glazing and, on the other hand, no direct solar gains are possible through the frame... ning Class A+); except for a few aluminum frames, no products were designated Class phC in 2012 and 20