A movement joint is in the tile only.
Floor ceramic tile expansion joint.
Ceramic porcelain and stone tile expands and contracts with thermal and moisture changes in the environment.
For floor applications urethane neoprene or polysulfide are most often used in traffic areas and silicone sometimes where traffic is not a concern.
Install the caulk after the tiles have been set and before the grout is installed.
An unqualified installer who was a sub to a sub to a sub put the tile in and he did not install any expansion joints within the body of the tile or around the perimeter.
In two places the tile was tented to the point where i could put my hands one on top of the other underneath the tented tiles.
From what is a movement joint made.
Height to match tile stone or wood thickness.
Movement joints are filled with material that allows for contraction and expansion.
Learn all about expansion joints here.
If the ceramic tile floor is wider or longer than 25 feet you will need to install an expansion joint near the center of the floor.
If you tile over an expansion joint then you need to honor that joint in the tile as well.
Type of tile or glass.
It allows for movement in the tile.
Caulk the grout gap between two adjacent rows of tile all the way across the floor.
Available in clear bronze finish.