How do we get rid of condensation and mold on windows in winter?

The air that fills our homes cannot be dry. The humidity in the air is created by a number of factors.

For example, a flower pot in a vase can emit 10 grams of water per hour into the space of the room. A person, at rest, contributes about 40 grams of water to the humidity of the air, and a person doing housework emits about 90 grams per hour. A washing machine emits about 300 grams per hour, cooking and cleaning add a liter of water per hour, a shower or bath up to 3 liters of water in one hour!

The higher the humidity and the lower the temperature, the more limited the air capacity to absorb water. When this phenomenon occurs in the atmosphere, it rains. If a room is heated to 22 degrees with 50% humidity, a cooler object will appear with condensation on it. This theory can be proven by a scientific experiment: If we remove a can of cola from the refrigerator and leave the wet can in the warm room long enough, we will see mold begin to grow on it.

This is exactly what happens to aluminum windows in winter. The mold, after clinging to the window frame, continues to spread and penetrate all the grooves and rubber bands of the window and on into the wall. And we all know how difficult it is to remove the mold once it starts growing.

On rainy and windy days, the temperature of the outer surface of the window drops even lower than the air temperature. Since the heat transfer capacity of aluminum is among the highest even among metals, the aluminum window profile not only allows the heat out, but causes the window to sweat with the mold penetrating inside.

A PVC window’s insulation capacity is 1210 times higher than an aluminum window,
so the moisture will remain outside, along with dangerous mold.

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