This is in a kids play room, all of it was done in timber, the back the surround and the hearth what an idiot. This is how I done it, it won't go on fire now at least. I used cement board at the back and tied the blocks together with mesh
What about this fancy work, job I had to do last week, the person that done this is lucky the house didn't burn down The tiles more or less fell off with little effort, it was only done 6 months