Expansion board consisting of a bonded gypsum core with a firmly attached fleece surface. The fleece can consist of organic as well as inorganic fibers. It gives the board the necessary stability. Plasterboards with fleece reinforcement are regulated in DIN EN 15283-1 and are marked with GM. They are used in drywall construction, especially in areas with increased requirements for stability, fire, sound or thermal insulation. The panels are also used in the floor area.
Source: bauwion