Red Seal Tilesetter Practice Exam

How can curling of tiles be prevented during installation?

1. By applying a thicker adhesive layer

2. By ensuring the adhesive is applied evenly

3. By using a heavier tile

4. By reducing the temperature of the adhesive

The correct answer is: By ensuring the adhesive is applied evenly

Preventing the curling of tiles during installation is crucial for achieving a flat and durable outcome. Applying the adhesive evenly is essential as it allows for proper bonding between the tile and the substrate. When adhesive is applied unevenly, certain areas may dry faster than others, leading to stress points that can cause the tiles to curl or warp. A uniform adhesive layer ensures that the entire surface of the tile is supported equally, reducing the risk of differential movement and associated curling. Having a thicker adhesive layer can sometimes lead to other issues, such as inadequate drying or movement within the layer, while using heavier tiles may not directly address the underlying problem of adhesion quality. Additionally, changing the temperature of the adhesive can affect its performance but is not a primary method for preventing curling. Therefore, even application is the most effective strategy to maintain a flat, level surface during tile installation.