Materials that help make walls soundproof include drywall, mass-loaded vinyl, fiberglass insulation and noise-control curtains. Supplementary materials include damping compound, acoustical sealant and decoupling hardware.Continue Reading
Drywall panels such as Sheetrock are inexpensive and provide mass to reduce sound. Damped drywall contains a layer of a sound-damping compound. Two brands of damped drywall are SilentFX and QuietRock.
Mass-loaded vinyl is good for wrapping ducts, pipes and columns because it is a flexible material. It is also useful for filling gaps, but it expensive for use as a layer in walls. Sound curtains contain a layer of mass-loaded vinyl. Fiberglass insulation provides sound absorption, which helps dampen sound, but does not soundproof by itself.
Using a damping compound such as Green Glue Noiseproofing Compound or QuietGluePro between two layers of drywall or plywood can block low-frequency stereo and construction noise. Acoustical caulk seals seams to stop sound from leaking through the cracks. Preventing sound leakage substantially increases the effectiveness of soundproofing panels.Learn more about Building Materials