Floor tiling with large tiles

Common issues and queries you can face

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Technical constraints

Large tiles are widely used nowadays mostly in showrooms and hallways. This trendy solution needs special application methods and special care (two persons to lay the tiles, back-buttering method mandatory, use of special equipment such as suction pads etc.).

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Substrates movement

When the substrate slightly expands or contracts due to changes in temperature or water content such as;

 • Shrinkage in the screed as it dries.

• Thermal expansion in hot weather. 

• Moisture-induced expansions caused by entrapped water. 

• Thermal cycling of under-floor/under-tile warming systems.

Tiles of different materials behave each differently.

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Large tiles suffer more strain levels

The increase in strain is cumulative across the width of the tile. The further a contact point is from the center of a tile, the more adjacent points in the tile and substrate will be stretched away from each other. 

For a given set of circumstances, a smaller tile will be less likely to delaminate than a larger one.

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Large tiles are placed under more stress

When non-rigid substrate deflects, the rigid tile cannot behave in the same manner. For a given deflection in the substrate, the chord height that the tiles try to bridge will be higher for larger tiles. 

This may result in higher stresses; therefore it requires to use an adhesive with greater flexibility to prevent delaminating or breakage failures.