Nowadays, window sills, which are important elements of the interior decoration of the window, can be made of wood, natural stone, marble, granite and onyx, but the most common plastic, characterized by durability, strength, high heat -insulating characteristics and resistance to sunlight.
Today, with metal -plastic windows, no one will surprise anyone, everyone knows that they are extremely expensive, similarly harmful, but in turn practical, and save a lot of heat.
