Thinset method: This is the most common method for installing tile. It involves applying a layer of thinset adhesive to the substrate (usually cement board or a similar material), then pressing the tile into the adhesive. The tile is then left to dry and set in place. Mastic method: Mastic is a pre-mixed adhesive that is applied directly to the substrate with a trowel. The tile is then pressed into the mastic and left to dry. This method is generally used for smaller tiles and on walls. Floating method: In this method, the tile is not glued directly to the substrate, but rather sits on top of a layer of underlayment. This is often used for large format tiles or tiles that need to be removed easily in the future.