Soundproofing involves using specialized materials and construction techniques to reduce the amount of sound traveling from one space to another. Unlike conventional thermal insulation, which primarily slows heat transfer, acoustic insulation is selected and installed to help absorb sound, reduce vibration and improve the sound performance of walls, floors and ceilings.
Different types of noise require different approaches. Airborne sounds such as conversations, televisions and music travel through the air and can pass through openings and lightweight building assemblies. Impact noise, such as footsteps or objects moving across a floor, creates vibrations that travel through the structure itself.
An effective sound-control assembly considers the entire structure, including insulation, drywall, framing, resilient channels, acoustic barriers and potential sound leakage around doors, outlets and other penetrations.
The right combination depends on the source of the noise, the construction of the building and the level of sound reduction you're trying to achieve.