Cultured Stone Questions

[JFR3]

I have the fireplace installed (Majestic 42"). I have the cultured stone for the wall. What I have is finished drywall that I want to put the stone over. Can I: 1.) Put 1/2" Durarock up over the drywall and mortar the stone to the durarock?, 2.) Put the metal screen (Lathe?) over the drywall, put up a scratch coat and then mortar to the scratch coat?, or 3.) Do I need to get rid of the drywall, put up plywood and then do the same as #2?

I'm doing it myself, so I would like to go with #1 if possible.

Thanks in advance.

 

[Zevi_B]

I think the answer is yes, but check out the installation instructions: (broken link removed to http://www.culturedstone.com/technical/docs/38713ocCSInstallBrochure.pdf)

Good luck,
Zevi