About convection and draughts

1 March 2017

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Convection is a constant current of air which is triggered by the difference of temperatures between the window surface and the air inside your apartment. Typically, the window surface is much colder, especially during winter time. Since cold air is heavier than the hot one, after cooling against the window surface it flows down, bringing inhabitants a strong sense of discomfort. Despite the fact that the window is well-shut and has no chinks, they feel a draught of cold air.

Very often that is precisely the reason why near an ordinary window we feel a strong discomfort in winter time. A window produced from an ordinary non-coated glass, during frost has a very cold inner surface - sometimes its temperature plunging down to 9-10 degrees Celsius.

However, you can significantly reduce this effect by using in the window special glasses like Optitherm™ S3 or Lifeglass™. For instance, by using in a triple IG unit Lifeglass™ as an outer pane, and Optitherm™ as an inner pane, you can increase the inner surface temperature by an impressive 6 degrees Celsius! Not only this will improve a microclimate inside you apartment during the winter, but also it will help to fight condensate on the inner glass surface.

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