I plan on tiling a bathroom in a basement. I was wondering could I just glue the backer board on the painted cinder block walls. I don't want to use screws or nails.
usually 1x material is secured to the blocks and then the cement boards or drywall is attached to the strips
Use thin set to bond it to the cement walls. As a precaution I always have braces set up to hold it in place until the thin set dries. Rough the paint up well and wipe dust down and use a latex thin set to bond with. Any questions you can e mail me through my avatar ..GL
You can. but it won't stay attached. At MINIMUM, you need to strip the paint so you have a surface the glue MAY be able to bond with. The PROPER method is NOT attaching the board to the concrete at all. You should frame out a wall and nail the board to the studs.
