Installing granite tile is one of the most beautiful and colorful of all the stone products used for tile work. Granite is an igneous rock highly saturated in silica, which in turn under hot heat and high pressure create quartz. This together with the other elements of granite makes for an almost scratch resistant surface that is hard and heavy, ready to be well worn and takes plenty of abuse.
Granite tile is installed very similar to other tiles except for the fact that is must be sealed and that is very, very heavy. It is solid rock after all. Supplying the substrate with enough support is critical to installing granite tile.
Whether you’re installing granite tile on a countertop, wall or floor, it must be understood; this stuff is heavy! If your underlayment is not properly secured to the walls it will come off. If you’re unsure of how many screws to put into the cementious backerboard, put in more!
The basics of installing granite tile are the same as installing most tile surfaces. A cementious backerboard is installed, a layout is set and thin-set is used to secure the tiles to the substrate. Tile installation basics can be researched using my articles, Installing a Cementious Substrate, Tile Cutting Basics and Tips for Installing Ceramic Tile.
After layout, dry fitting the pieces of cut tile together, you can begin applying thin-set with a notched trowel. Use plastic spacer to ensure the proper space for grouting.
Once the granite tiles are dry, you can begin grouting. Mix the grout as per the directions until you achieve a creamy peanut butter light consistency. Use a sponge float and mush in the grout. Wipe away the excess with a clean sponge.
After the grout has dried, granite tiles need to be sealed with granite tile sealant, or you may easily get stains. Never leave a cup, glass or bottle on a granite counter, it will stain it forever!