Low density acoustical gypsum board with a perforated cover sheet, which has excellent sound absorption characteristics, in general fall of plaster dust drop does not. The present invention provides optionally a cover sheet having a pattern that provides a visual effect with a textured Looking particularly at a distance.
A set gypsum core made from the core formulation having about 75 wt% to about 90 wt% of stucco, based on the total weight of the A core formulation, about based on the total weight of the core formulation 0 and about 15% by weight of perlite, total and paper fibers from about 2% to about 12 wt% based on the weight, about 0.5% to about 5 wt based on the total weight of the core formulation of the core formulations including% of the starch, and a number of sound-absorbing perforation ranging in the gypsum core through the cover sheet.
.FIELD 1