PregyBel is the range of the perforated standard boards Pregyplac BA 13, 12.5 mm thick, tapered edges, for the realization of acoustic ceilings (acoustic environment correction) and decorative, with certified solution for protection against falling of hollow tiles pieces from reinforced concrete slab . The boards are provided with a film of fiber-glass on the back that prevents the fall of dust from the holes and are available in 7 models with 4 different aesthetic drawings: round hole, square, linear or random.