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Sound Engineered Drywall

What is sound engineered drywall?

Sound engineered drywall, also referred to as “SED,” is a special type of drywall designed to soundproof interior walls, floors, and ceilings in residential and commercial structures. Sound engineered drywall is versatile and convenient as it can be used in two ways: it can be applied directly over regular drywall to soundproof existing structures, or it may be used instead of regular drywall during the initial construction of new structures that require soundproofing. Sound engineered drywall is created in the same way that standard drywall is created but with the addition of a proprietary soundproofing material that is layered between the other materials.

How is standard drywall created?

Standard drywall, often known as “gypsum board,” “plasterboard,” or “sheet rock,” is a common building material used around the world in the construction of interior walls, floors, and ceilings. Pieces of drywall are called “drywall panels,” and are composed of an inner core made of gypsum plaster, which is the semi-hydrous form of calcium sulfate. The gypsum plaster is mixed with paper or fiberglass, along with several other substances that make the drywall resistant to mildew and fire, and finally, water. The wet gypsum plaster mixture is then placed between two sheets of heavy paper or fiberglass mats until the entire blend of materials dries and hardens. Upon drying, the mixture becomes rigid and strong enough to be used as a construction material.

How does sound engineered drywall soundproof walls?

Sound travels through walls by way of vibration. In turn, to soundproof a wall is to reduce the wall’s ability to conduct vibrations by engineering the wall to absorb rather than conduct sound waves. This processing of absorbing sound or slowing down sound vibrations is called “damping” the sound wave, and damping is accomplished by adding density to and “disconnecting” the wall, or obstructing the sonic path between one side of the wall and the other through the addition of layers. This is how sound engineered drywall works to absorb sound and prevent it from becoming airborne on the other side of the wall, ceiling, or floor.

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