And one more optimal detail: the places where the windows made of plastic are installed require constant ventilation. Due to the tightness of the windows, the natural microventilation of the room is destroyed, because of which moisture does not evaporate through the cracks, but settles on double-glazed windows with condensate. To reduce dampness, just ventilate the room. From time to time, look at the drainage channels made in plastic windows. If they are littered, then condensate will accumulate inside the cameras, and in large frosts it can cause the appearance of windows. Therefore, the cleaning of the “drainage” from dirt and dust should be regular and frequent.