Plasterboard is basically an inner layer of gypsum sandwiched between two outer layers of lining paper including various additives in the gypsum layer and varying the weight and strength of the lining paper, will give the finished board different properties. Plasterboard is good for cutting down noise transmission particularly airborne sounds such as speech and music. High performance plasterboards have a specially designed core that provides even better insulation against sound.
Insulation is the home keeps you comfortable, saves you a fortune in heating and cooling costs, and even buffers noise within your home. Insulation facing is intended to serve as a vapor barrier that helps to keep interior moisture from migrating into the wall cavities, where it can lead to mold growth and other problems. Typically, the facing is installed on the «warm in winter» side of the wall. Therefore, in most climates, the facing goes on the interior side of the wall frame, so it contacts the backside of the drywall.