To begin all work with drywall sheets, it is necessary to figure out in detail and thoroughly what varieties of building materials exist, and we will analyze the main characteristics of drywall. Gypsum cardboard is a material consisting of three different layers: the external two of the special cardboard, as well as the internal - with gypsum additives. One sheet of ordinary construction drywall can have a weight of up to 30 kg. Drywall directly dependent on the additives taken during its production is divided into several varieties:
