Posted By: RobertY
Masons: Installing Rock over hardibacker..suggestions? - 02/24/13 01:48 PM
I've read a few different methods, but I'm looking for people with experience on this type of installation.
I have 3/4" thin oklahoma rock that I want to stick directly to vertically installed hardibacker. I've read several installation tips, but can't seem to get a firm answer. I've compiled a method and wanted an opion on this process:
1. Wet hardibacker with a sponge
2. Apply a light coat of concrete bonding adhesive
3. Mix Type S or Thin set mortar with bonding agent and water
4. apply mud with slotted trowel
5. Apply rock, pressing firmly, tapping lightly
How does this sound? Any recommendations? I figured if I applied glue to the hardiboard AND in the mortar mix, there's no way that it could come loose.
I'm going to be doing a drystack method on the installation, so I wont have any grout in between. Whatever is on the back of the rock, has to do all the holding.
I have 3/4" thin oklahoma rock that I want to stick directly to vertically installed hardibacker. I've read several installation tips, but can't seem to get a firm answer. I've compiled a method and wanted an opion on this process:
1. Wet hardibacker with a sponge
2. Apply a light coat of concrete bonding adhesive
3. Mix Type S or Thin set mortar with bonding agent and water
4. apply mud with slotted trowel
5. Apply rock, pressing firmly, tapping lightly
How does this sound? Any recommendations? I figured if I applied glue to the hardiboard AND in the mortar mix, there's no way that it could come loose.
I'm going to be doing a drystack method on the installation, so I wont have any grout in between. Whatever is on the back of the rock, has to do all the holding.