Thecomfort of pool use, as well as its contemporary vision, depend to a large extent on the additional elements accompanying the trough. There is an easy way to extend the pool usage period by at least two to three months. Telescopic coatings easily transform the outdoor pool into indoor. They not only allow it to be used in adverse atmospheric conditions but also protect the water from contaminants such as leaves, branches and dust. In addition, they largely maintain the temperature of the water. Telescopic construction does not require effort to cover and detect. Everything is made easier by the rails that almost ignore the friction. It is possible to mount an electric drive. They are made of aluminum profiles and polycarbonate boards, ensuring long life and trouble-free operation. Telescopic coatings with success can also be applied to winter gardens, sports facilities, greenhouses, and so on.