Problems grouting over sheetrock?
I'm remodeling my poweder room and was planning on creating a mosaic (approximately 2' x 2') on the wall, matching the design on the floor. I'll have my design adhered to a screen which will then be attached to the wall, but my question is this: Will the moisture from the grout seep into the sheetrock? Do I need to prep the sheetrock in any way? Any suggestions would be much appreciated.