Our QUIET BARRIER™ is more effective than a sheet of lead at blocking sound; you can use it to lower the transmission of sound between two spaces. The QUIET BARRIER™ is also very effective at blocking noise penetrating walls. Easy to install, the QUIET BARRIER™ is available in conveniently sized 4 1/2 ft. wide 20 ft. rolls. By installing this material in conjunction with a wall system you can expect an 85% reduction in noise.