An effective variety of sheet finishing materials today is a glassomagnesy sheet. The material is durable, light, differs in stable properties, does not rot, resistant to moisture and is easily mounted. Glass of glass -fringe withstands the exposure to open fire for about 2 hours. Golomagnesite does not secrete toxic substances when heated, do not contain harmful impurities. Magnesite sheets are easier than the sizes of drywall similar in size.