Wall system for recording studio / home. Vapor questions?
Hello, thanks in advance for your time and knowledge. This site is a great resource.
I am building a home / recording studio in Murfreesboro, TN (zone 4A) and have some questions about my wall system. My plan is to build my walls in the studio as such: vinyl lap siding, 1″ xps foam taped at all seams, osb taped at seams, 2×4 walls with rock wool batts, 5/8 drywall, 1/2″ sound stop fiberboard and finally one more layer of 5/8 drywall painted. All air sealed as best I can. My question / concern is about vapor.
Does this wall system pose any issues with vapor?
Will the foam be a sufficient vapor barrier?
Do the 2 layers of drywall with the 1/2″ layer of fiberboard pose any issues?
Last, the living areas of the house will have the same wall system except only one layer of 1/2″ drywall. No fiber board. Any changes here?
Again, I very much appreciate any reassurance / help on this issue.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part