Can I Tile Over Stone?

[DaveJL]

I have just installed a new cast iron fireplace and mantle. I’ve also built a raised trim around the old stone hearth and plan to tile inside.

Can I tile directly onto the stone or do I need something in between the adhesive and the flat stone base?

Thanks for any help.

Dave
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I should mention this is just a show fireplace and will never actually be used for a fire.

 

[Dave]

Hi , what stone is it and what finish.

 

[DaveJL]

It’s a stone slab which is flush with the old wooden floorboards that was the original hearth. Honestly not sure what type of stone it is.

The finish is smooth and flat. No texture which is more what worries me as no key for the adhesive to really grab to.

 

[Dave]

It’s a stone slab which is flush with the old wooden floorboards that was the original hearth. Honestly not sure what type of stone it is.

The finish is smooth and flat. No texture which is more what worries me as no key for the adhesive to really grab to.

Can you post a pic please

 

[DaveJL]

Can you post a pic please

Sure. See attached.

 

[Dave]

Sure. See attached.

View attachment 113353

I would be concerned about that big crack in it.

 

[Bond]

It’s more than likely a slate slab hearth, nasty crack tho ,think l would use a anti-crack mat first before you tile, use flexible adhesive.

 

[DaveJL]

Ok noted guys - thanks for the advice. I’ll make sure I use an uncoupling mat before putting the tiles down.