Is interior window condensation bad?

Condensation on the interior surface of windows can ‘affect the concentrations of some indoor air pollutants’, which in turn can have damaging effects. … But along with your health, the formation of condensation on the inside of windows can also be harmful to the structure of your home.

Is interior window condensation normal?

If condensation has formed on the inside of your window, this is perfectly normal. … Condensation forms when warm air meets a cold surface, meaning the warm air inside your home is meeting the cold surface of the glass.

Do I need new windows if I have condensation?

Although condensation doesn’t signal that you need new replacement windows, it’s still possible that you do need some. If you’ve had your windows for years and you notice that they are a little drafty, then you may want to consider investing in new windows.

Why are my windows wet inside in the morning?

The reason it happens is because the external air is warmer than the temperature of the glazed pane’s surface – and the dew point of the air is higher. It is more likely to occur at night or early in the morning when temperatures are low, particularly if there is a clear sky and almost no wind.