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What is the technical term for expansion joints in tile installations?

Thresholds

Movement joints

The correct term for expansion joints in tile installations is "movement joints." These joints are specifically designed to accommodate the natural expansion and contraction of materials due to temperature changes, moisture variation, or structural movement. By incorporating movement joints, the risk of cracking and damage to the tile and substrate is significantly reduced.

Movement joints are strategically placed at regular intervals in tile installations, especially in larger areas, to allow for this necessary movement. They help to maintain the integrity of the tile work and ensure a longer lifespan for the installation. Other terms such as thresholds, grout lines, and control joints may relate to different aspects of tile or flooring systems, but they do not accurately describe the function and purpose of expansion joints in this context.

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Grout lines

Control joints

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