Natural stone veneer on fireplace surround
3/4inch natural stone veneer over hardi board.
Thinset as bonding agent.
Will skip the lath scratch coat and bond directly to concrete board.
The fireplace is a clean look fireplace with a contemporary look that allows either concrete board or stone to come right to the glass.
Does anyone see any concern with the thinset stone that is directly over the the metal surround.
Issues that I am thinking about is bond failure from heat and differential expansion between metal surround and the stone.
Lastly the metal surround is 6x36 across the horizontal and 3x20 on the vertical.
27 years ago I laid marble directly on the metal fireplace surround. We've had countless blazes in that fireplace since then and the marble is still solidly secured.
I am updating some of my posts for the sake of the community.
I debated bonding directly to the metal surround, but worried that the metal would be expanding and contracting due to the heat and work the mortar loose.
In the end I faced the metal surround with concrete board and schlutter edging to hide the concrete board.
the finished project attached.
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