Why does condensation appears on my windows and what can be done?
Condensation on your windows operates on the same principle as steamed up bathroom mirrors after taking a shower. The steam from the shower is too heavy to be carried away in the air, so it condenses onto the coldest surfaces in the room and you get a steamy mirror. Likewise, if the moisture in your home is too dense to remain in the air, it too will condense onto the coldest surfaces in your home, which are most likely your windows.
In a nutshell, if you see condensation on your windows you most likely have too much humidity in your home and you’ll want to focus on reducing the sources of humidity. Typically, winter is more troublesome than summer when it comes to condensation because you home is closed up to keep the heat in. Warmer air holds more moisture than cold air, which is why condensation will appear on your window more often during the winter months.