Joints must also be formed within the tile field every 12 to 16 feet in each direction for exterior floors and for interior floors exposed to sunlight.
Floor ceramic tile expansion joint.
Tile expansion joints tile doctor ceramic porcelain and stone tile expands and contracts with thermal and moisture changes in the environment.
For larger areas the movement joints will be visible.
There are two kinds of movement joints.
These joints in the tile should never be narrower than the structural joint.
Simply put a movement joint is a gap or space next to a tile that lets a tile floor move a bit.
In small rooms a gap at the perimeter of the room often hidden by baseboard or shoe molding is sufficient.
The tcna handbook recommends allowing for expansion and contraction in every tile installation.
Caulk the grout gap between two adjacent rows of tile all the way across the floor.
Install the caulk after the tiles have been set and before the grout is installed.
Control construction seismic and other expansion joints must be continued through the tile work.
Ctc joints are prefabricated caulk joints designed for use over control and cold joints in any area subject to foot and light vehicle traffic.