EXTERNAL CONDENSATION
Dew on the outside of the glass may occur on new windows with a low u-value (good insulation). This can occur on windows with both 2- and 3-layer glass. Dew occurs when the outer glass cools at night and there is high humidity, usually in the autumn and winter months. If the window has little opportunity to radiate freely towards the sky, the risk of external dew will be reduced. Shielding can, for example, be roof projections, awnings, overlying balconies, surrounding vegetation, buildings, etc. If the windows are retracted and not at the outer edge of the wall, it will also act as a shielding and reduce the risk of condensation.
INTERNAL CONDENSATION
The window panes are usually the coolest point in a room and often the conditions can be such that condensation forms on them. The cause of this problem is usually found in the indoor climate of the home. Dew formation can be remedied by low room humidity, good ventilation and regular ventilation. This is important in rooms where there are many people and/or plants, as well as where cooking and washing take place. In cold periods, it is important to have rising hot air inside the glass in the form of a heat source under the glass. Without a heat source under the window, the air will fall down along the window surface, contributing to the cooling of the glass and the air near the glass. This creates ideal conditions for condensation. You can also choose a window where a spacer strip of composite material has been used instead of aluminum or steel between the panes.
CONDENSATION BETWEEN THE GLASSES
If this problem occurs, it is due to a leak in the seal around the glasses and the pane must be replaced. If this occurs during the warranty period, there is a complaint.