Thin Panel Tile Installation

A new form of porcelain tile is gaining acceptance, particularly in the remodeling of tile installation. Because these tiles are only 3-6mm thick (1/8”-1/4”) they add very little height to the installation. They are ideal for installation over well bonded existing ceramic tile. They are also available in very large panels for ease of maintenance of the tiled surface; these panels are as large as 60” X 120”.

These thin porcelain tile or panels are recommended for both interior and exterior walls over existing tile or smooth masonry surfaces. These thin porcelain tiles can also be used for interior floor applications over existing tile or smooth concrete. Some of the larger wall panels may require the use of mechanical fasteners. Consult tile manufacturer for specific areas of use and any special installation needs.

A key to a successful installation of these thin porcelain tiles is the preparation of the surface. The surface must be flat and true. In most cases, TCNA guidelines for installing large format tile (one side greater than 15”) surface tolerance are acceptable. It is also important to note that we recommend maximum allowable variation can not be more than 1/8” in 10’ and no more than 1/16” in 3’, with no abrupt irregularities greater than 1/32”.

Lippage is another concern as the current TCNA guidelines allow up to 1/16” lippage between adjacent tiles. Because these tiles are so thin this can amount to 50% of the tiles thickness. A simple impact to the edge of a tile may cause it to break. Therefore to prevent damage, it is recommended that we minimize lippage to less than 1/32” to prevent damage to the tile. The use of a mechanical leveling system may aid in reducing lippage between tiles.

It is advisable to have only industry certified or highly experienced installers attempt the installation of these gauged porcelain tiles and panels/slabs. Trained installers will know how to use the specialized cutting equipment, racks, trowels and other tools that make the installation of these tiles faster and easier. Breakage can be expensive, so it is best to have an expert with this material perform the installation.