Fogging of plastic windows: Why is this happening

The appearance on the glass drops of water from the inside has a simple explanation. Fogging of plastic windows It occurs due to the fact that the temperature of the glass or plastic was lower than the dew point. What is meant at the dew point. Each of you studied this question at school in physics lessons. Dew is the limit of temperatures at which there is a reorganization of not saturated steam into saturated steam. The remains of moisture are condensation. The limit of this temperature may depend on several indicators. Air pressure, change the temperature and, what affects the fogging of plastic windows, relative humidity, these are the parameters of the dew point.

Air humidity is the ratio of water, which is present in the air under the guise of an unsaturated steam, and water that can be absorbed by air in a rich form. You can draw a kind of parallel. With low temperatures in the air, less water is required to switch to saturated water vapor. Accordingly, we get low indications of the dew point. Hence the amount of condensate on the surface of the windows decreases. Conversely, at high temperatures - increases.

It can be concluded that in the winter, if the room is cold and a large level of humidity, fogging of the windows will be a natural process. Window cooling occurs under the influence of low temperatures on the outside, or by penetration of cold flows through ventilation. To avoid such inconveniences, the level of humidity in the room should be controlled using a hygrometer. The humidity of the room should correspond to 40%, then you will have no problems.