Lippage on tile

Close-up of a tile floor showing lippage, with a straightedge or level highlighting the height difference between adjacent tiles.
Photo: Tahir Xəlfə / Pexels
A specialized tool or straightedge being used to measure the height difference between two adjacent tiles, indicating lippage.
Photo: Vladimir Srajber / Pexels

Maximum Allowable Tile Lippage

Maximum Allowable Tile LippageIllustrates the maximum acceptable height difference between adjacent tiles according to industry standards.Rectified TilesRectified Tiles: 0.8 mm0.8 mmCushion-Edge TilesCushion-Edge Tiles: 1.6 mm1.6 mm
Based on ANSI A108.02 standards for tile installation, where lippage is measured from the highest point of an adjacent tile.

Watch: Preventing and Fixing Tile Lippage

This Grouting Mistake will Ruin Your Tile Job via Home RenoVision DIY

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What is Lippage on Tile?

Lippage refers to the difference in height between the edges of adjacent tiles. This can create an uneven surface, posing a potential hazard and affecting the aesthetic of the tiled area.

It is a common concern in tile installations and can occur with various types of tiles and installation methods.

Causes of Tile Lippage

Several factors can contribute to lippage. These include variations in tile thickness, uneven subfloors, improper tile leveling during installation, and the use of incorrect setting materials.

The type of tile itself can also play a role; some tiles may have inherent edge variations that make them more prone to lippage if not managed carefully during installation.

Preventing Lippage

Preventing lippage involves careful planning and execution during the tiling process. Ensuring the subfloor is level and using a quality tile leveling system are crucial steps.

Properly mixing and applying tile adhesive, along with consistent grout joint widths, also helps to maintain an even tile surface. For projects requiring precise material calculations, a tile materials calculator can be a valuable tool.

Grout and its Role

Grout is a dense substance used to fill gaps between tiles, forming a water-resistant seal when correctly applied. It is typically a mixture of water, cement, and sand.

While grout fills the spaces, it does not directly address the height differences between tiles, which is the definition of lippage. Proper installation techniques are key to preventing lippage before grout is applied.

Key takeaways

  • Lippage is the difference in height between adjacent tile edges, creating an uneven surface.
  • Causes include tile variations, uneven subfloors, and installation errors.
  • Prevention involves leveling the subfloor, using leveling systems, and proper adhesive application.
  • Grout fills gaps but does not correct tile height differences; installation technique is paramount.

Related tools

Estimate materials with our tile materials calculator on TileMaterials.

Sources