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I am building a raised hearth for my woodstove, and am ready to install the manufactured stone veneer. I am familiar with doing this with the small stones on walls, but unclear on the process for the hearthstones. They are 19x20 inches. The surface of the hearth is cement board. Do I use a notched trowel, just butter the back of each stone and set it in place, do both, or something else? Thanks.


 

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Concrete & Masonry
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If the hearth is nice and level, you could certainly use a notch trowel. If you need to build it up on one end to level it out though, you may need to just spread the mud with a trowel. You may want to wet the tile backer first as well, as it can suck the moisture from the mud extremely fast.
 

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Thanks for the reply. The hearth is level. I plan to use a 1/2-inch notched trowel, and also butter the back of each stone.
 
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