It turns out a flat and smooth surface.

Hypsum cardboard fascinating streams are when drywall sheets are simply sewn to metal structures. It turns out a flat and smooth surface. It hides the irregularities of surfaces well, allows you to hide all the wiring and other possible communications. Allows you to adjust the skewed corners of the apartment, which the brick houses of the old masonry are especially sinning. Such options for the ceiling made of drywall are lined with other material on top or covered with paint. If you want to apply some design sophistication, then such a ceiling can be covered with a pattern.