Red Seal Tilesetter Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the phenomenon of tile lippage?

Cracking in tile after installation

When adjacent tiles are at different heights

Tile lippage is specifically referred to as the condition where adjacent tiles are at different heights, resulting in uneven surfaces. This can occur due to variations in the thickness of the tiles, improper subfloor preparation, or inadequate installation techniques. When tiles are not set level with one another, it creates a noticeable step or bump between them, which can be both unsightly and hazardous, especially in high-traffic areas where tripping may occur.

Understanding this phenomenon is crucial for tilesetters, as it directly affects the aesthetic and functional quality of the tile installation. Maintaining level surfaces is an important aspect of the tiling process, and preventing lippage is a key consideration during the layout and setting of tiles.

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A method of sealing tiles

The type of grout used

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