The organic appearance, practicality and convenient use of the Korolev inclined plastic window was so poured into the atmosphere of the room that such windows have gained worldwide popularity. Typically, the attic is used as a warehouse of unnecessary and all rubbish, but with the advent of an inclined window, these terrible rooms turned into a full -fledged dwelling. Manufacturers of such window systems give complete instructions for their installation, but the attic at home must be designed so that the finished room looks in proportion. However, design of design can be turned into advantages.