Reduce airborne noise with these 4 techniques

[@Mythbuster42]

I dont think rockwool has STC rating data.

[@soundproofist]

This data sheet (see link) is from the Rockwool site, though there are other independent sites with STC estimates. Of course, results are contingent on the rest of the wall assembly, the type and frequency and proximity of the incoming noise, etc. www.rockwool.com/siteassets/o2-rockwool/documentation/technical-guides/commercial/acoustic-wall-assemblies-catalog-techincal-guide.pdf