What is necessary to ensure adequate adhesion of tiles to a subfloor?

To ensure adequate adhesion of tiles to a subfloor, proper surface preparation is crucial. This includes cleaning the surface thoroughly to remove any dust, debris, or contaminants that could hinder the bond between the adhesive and the subfloor. A clean surface allows the adhesive to grip effectively, ensuring that the tiles adhere well and maintain their position over time.

Additionally, leveling the subfloor is essential. An uneven surface can lead to stress points under the tiles, which can cause cracking or loosening as the tiles settle or as they are subjected to foot traffic. By ensuring that the subfloor is smooth and level, it allows for a uniform distribution of the adhesive, creating a strong bond across the entire surface of the tile.

Other options, such as using any type of adhesive or applying moisture repellent, do not address the fundamental requirement of preparing the surface, which is vital for ensuring the longevity and performance of the tile installation. While larger tiles may have an aesthetic appeal or practical benefits in some scenarios, they do not inherently guarantee better adhesion unless the underlying preparation is also consistently adhered to.