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WHY DOES CONDENSATE OCCUR ON THE SURFACE OF A WINDOW? HOW TO AVOID IT?

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Formation of a water condensation on windows cannot be entirely avoided but with a technically good glass unit and additional means, one can minimise the condensation and thus reduce damages to the window structure that can be caused by it.

To avoid condensation, it is necessary to ensure that no dew points form on the glass pane. Warm and dry air must constantly move near the window. This is hindered by such ordinary things as flower pots on windowsills, curtains, rollers, etc. If heating of a glass with warm air is restricted, the glass cools down due to the external temperature and the result is the so-called “misted windows”. Most often condensation is formed on the surfaces, which are colder and smoother. The temperature of a glass with a bigger U-value is lower and thus we can see water drops on the inner glass. There are many reasons of formation of condensation: interior temperature and moisture content, the temperature of surfaces and external temperature.