What does the term "subfloor" refer to in tiling?

The term "subfloor" refers specifically to the structural layer that lies beneath both the finished floor and the tile. It plays a critical role in providing stability and support for the flooring materials that are installed on top of it, including tiles. The subfloor must be adequately constructed and in good condition to ensure that the tiles adhere properly and maintain their integrity over time.

In tiling, having a suitable subfloor is essential as it helps distribute the weight of the tiles and any loads applied to the floor. Additionally, it aids in preventing cracks or failures in the tile layer above. Properly addressing the subfloor during installation can also help mitigate issues such as movement, flexing, and moisture problems that could compromise the tile work.

Understanding the importance of the subfloor is crucial for anyone involved in tiling, as it sets the foundation for a successful and long-lasting installation.