Thus 12mm joints can be compressed to about 10mm and extended to about 14mm 6mm compressed to about 4 75mm and extended to about 7 25mm.
Tile expansion joint.
Placement of expansion joints is very important.
Schluter systems prefabricated movement joint profiles protect tile edges and prevent sound bridges and surface water penetration resulting in a permanent maintenance free installation.
Where should movement joints be placed.
An expansion joint is in the substrate for instance in concrete.
Expansion joints are a necessary installation on large areas of tiling.
It is recommended that you err on the side of caution and use the smaller measurement.
Learn all about expansion joints here.
If you tile over an expansion joint then you need to honor that joint in the tile as well.
It allows for movement in the tile.
Recognizing that tile is a facade movement joints are needed to eliminate stresses that can occur between the substrate and the tile due to differing amounts of expansion and contraction.
The larger the tile field the more it will expand and contract and be vulnerable to failure.
According to the ntca national tile contractors association reference manual an expansion joint is a joint through the tile mortar and reinforcing wire down to the substrate by integrating these stress relievers into the tile assembly expansion and contraction takes place without compromising its integrity.
The use of expansion or movement joints is to safely absorb the movement in the floor or wall from heat expansion or vibration.
It s quite common to see controlled breaks in concrete and those are usually expansion joints.
Latham standard loc strip hard flooring expansion joints are capable of absorbing extension and compression equivalent to 16 or 20 of the undeformed width of their elastic neoprene cores.
In almost every case the substrate will move differently to the covering material.
Including movement joints in floors enables the tile bed to move in unison with the individual substrates.
A movement joint is in the tile only.
Expansion joints are needed because all tiles expand and contract with temperature and moisture changes.
Movement joints are an integral part of any tile assembly and must be incorporated within the tile field at doorsills and at transitions to walls and other restraining structures to allow movement of the assembly and prevent stresses that can damage the system.