Looking for Floor and Wall Assembly with 50 STC

[dshall]

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 

 

[HumbleChief]

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