dshall 1197 Posted February 4, 2017 I have a project that is close to a freeway. I can either provide an acoustical report or build the walls, floor and attic with an STC of 50. Does anybody know where I can get an approved assembly. I need a sloped ceiling assembly, a wall assembly and a deck above assembly. Thanks guys Share this post Link to post Share on other sites
HumbleChief 381 Posted February 4, 2017 Check this link. http://www.usg.com/content/dam/USG_Marketing_Communications/united_states/product_promotional_materials/finished_assets/acoustical-assemblies-en-SA200.pdf and this google search... https://www.google.com/search?q=stc+50+assemby+detail&oq=stc+50+assemby+detail&aqs=chrome..69i57.6143j0j4&sourceid=chrome&ie=UTF-8 Share this post Link to post Share on other sites
