贴砖留缝，防的是什么？
Tile Laying: Why Grouting Joints are Necessary
Consultation from Ms. Liu in Lijiang.
After tile installation, there are phenomena of thermal expansion and contraction, as well as chemical shrinkage in the base layer, tile adhesive, tiles, and grout. Leaving a certain gap allows for the release of concentrated stresses caused by expansion and contraction, providing "buffering" space.
Even tiles from the same batch can have slight discrepancies. Leaving gaps allows for a better and more precise alignment between tiles.
Moreover, if tiles are not left with gaps during installation, the difficulty in replacing or maintaining a local tile is significantly increased, which can have a great impact on the overall tiles.
Therefore, leaving gaps when laying tiles is very necessary.
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