Serious Materials created the category of "soundproofing” building materials with QuietRock noise reducing drywall. QuietRock noise reducing drywall is the easiest, most reliable, and lowest total cost solution for high acoustic design / soundproofing requirements, delivering STC of 46-80 walls. Since 2002, QuietRock has been installed in over 40,000 projects including multifamily, hospitality, medical, military, government, and education building types and facilities. The complete line of QuietRock Soundproofing Drywall is available across the U.S.