I am building an interior hearth and surround that will ultimately be covered in cultured stone for a woodstove. I have constructed the hearth of 2X6 covered with 1/2" plywood with wonderboard over that. I have questions about securing the wonderboard to the wall for the surround:
-Is it necessary to secure 1/2" plywood to the drywall and then attach the wonderboard to the plywood? I am concerned that simply screwing the wonderboard to the studs will not provide enough support for the stone.
-Is it necessary to use a vapor barrier when installing wonderboard for an interior installation?
Thank You for your help!
-Is it necessary to secure 1/2" plywood to the drywall and then attach the wonderboard to the plywood? I am concerned that simply screwing the wonderboard to the studs will not provide enough support for the stone.
-Is it necessary to use a vapor barrier when installing wonderboard for an interior installation?
Thank You for your help!