Movement joints are essential engineering components in any large-scale tile installation. They absorb the stress caused by the natural expansion and contraction of the structure and the tile itself. These joints are typically filled with flexible materials like silicone or color-matched caulk rather than rigid grout. By placing these joints at the perimeter and at intervals across the room, the installation can accommodate minor stresses without the tiles popping loose or cracking from the pressure of the expansion.

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