I recently installed Airstone on my fireplace wall. It's a Lowe's product. I guess it would be considered a stone veneer. I am planning to install a mantel. The one I bought has a hanger board that gets mounted the wall, and then the mantel rests on top of it.
My issue is that I'm not sure what type of screws to use and how to drill the pilot holes. There is a Youtube video from Airstone saying it can be drilled (see below). I don't know if I need some type of masonry bit or if an ordinary bit is fine. Is there a good type of screw to use? I need something that will go through the Airstone and into the studs (wood and a stone veneer). The Airstone is 1", the hanger board is 1", and the drywall is 5/8".
Thank you in advance for any advice.