Plastic windows have excellent thermal insulation….

Plastic windows have excellent thermal insulation, so if there is no good ventilation in the house, moisture may accumulate in it, which, condensing, forms glazed areas on the windows. This phenomenon can be avoided by controlling humidity in the room: ventilate the apartment and not close the heating radiators with various objects so that the heated air can freely circulate around the room. Plastic windows have two or three seals that also need to care.