You must get rid of present drywall ahead of putting in resilient channel. Don’t basically attach the channel over current drywall. Pro suggestion: Scrape away the surplus sealant that has a putty knife so that you can finish these corners with joint compound while you Typically would. Take note: The https://dantevpftg.howeweb.com/35277415/not-known-facts-about-diy-secondary-glazing