Windows fogging up from the outside: what it means and how to react correctly

If your windows mist up from the outside, there is no reason to worry. On the contrary: it is a sign of good window quality

Windows fogging up from the outside: this is the cause

If your window fogs up from the outside, this is evidence of good thermal insulation.

• If your windows are well insulated, no heat can escape from your home to the outside. This is good for you because you can save on heating costs.
• The process you can now observe is that the outer pane of your window stays cool because it is not being heated by the air in the room.
• The outside air, which in this case is warmer than the window pane, hits the window pane and this causes condensation. As a result, your windows will also mist up.
• Normally, you can always observe this happening in the cool months and especially in the morning.

Windows fogging up from the outside: What you can do

If your windows mist up from the outside, you don’t have to do anything. Because just as the condensation came, it will go away as soon as it gets a little warmer outside.

• You don’t have to worry about damage to your window. Because the window is built to withstand this moisture.
• If the condensation still bothers you, the only thing that will help is to lower the blind at night so that the window pane does not cool down too much.
• Alternatively, you can have self-cleaning windows installed when you build your house. These are water-repellent and accordingly, keep condensation out well.
• If you don’t want to wait for the moisture to disappear on its own, you can also pull the windows off with a window squeegee.