I need to replace some walls with cement board, green board etc. in some compromised rooms. These older buildings built around 1940ish seems to have used very slender iron studs that seems to be joined with wiring. I'd like to install some wooden studs along side these iron ones but how do I go about doing that? I won't have solids headers or footers because of the iron braces and how to I attached the wooden studs to the metal ones? Can I get away with not screwing the news stud framework into the concrete floors and ceiling?