Bill & mongo tile question
I am stripping out a 6x6 bathroom tile backsplash in a kitchen, it looks like it was set in mastic. Thick notch yellow looking stuff. In new kitchen I want to use some glass mosaics. Should this drywall that is covered in this mastic just be removed and replaced? And should I replace with new drywall or other material. I was thinking maybe green board or is that over kill? It will be the wall behind the stove, (steam?) sink will sit away from backsplash. Tia!