I have a metal zero clearance fireplace, surrounded by drywall. I had granite cut to cover the metal and about three inches over the drywall (all the metal will be covered except for the lower vent). What technique and adhesive should I use? Modified thinset, silicone adhesive, etc? The metal does get somewhat hot if I have a good fire going, so I wonder about thermal expansion differences. This is a vertical installation, so the granite should be as flat to the metal as possible; a substrate like a metal grid under the granite would look terrible. I'm hoping to find the right adhesive that will allow me to simply put the granite right up against the metal. The granite pieces are heavy. Also, how much does granite expand when warm...should I leave a small gap between the pieces? Hope to hear answers from people that have actually done this type of installation and used their fireplaces successfully!
- posted
15 years ago