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What Causes a Floor Tile to Loosen?
Many homeowners have asked me, "Why do floor tiles loosen?" It is superb to me, with the advances in floor preparation and modified mastics, that tiles can still come loose. It is possible to understand why floor tiles come loose without employing the help of a flooring professional or normal contractor. Enable me to tell you why this happens.
First, it is essential to understand what holds the tile to the floor. Tiles, whether made of ceramic, porcelain, slate, granite, or marble, are all held in place by a substance called thin set. Thin set is a Portland cement based material containing a special blend of additives which give the mixture the ability to gently flex under strain and return to its authentic position. This strain, additionally known as load, could be the result of climatic adjustments, such because the passing of the seasons, or from a physical nature, akin to the load of an individual or item placed on the tile.
Generally the strain or load might be too much for the thin set. If a heavy object is positioned on the tile floor, corresponding to a piano, it could be very potential to overload an individual tile. If this occurs, the bond between the tile and the thin set can be broken and the tile can sheer away. As soon as sheered, the tile will by no means re-bond with the thin set. The result's a loose tile only held in place by the grout surrounding its 4 sides.
Next, the construction of the floor needs to be considered. Earlier than installing any type of tile floor, the contractor or flooring professional ought to survey the sub floor. The sub floor must be constructed inflexible sufficient to assist its own weight, the load of the tile, and the burden of the items positioned on it. Most local codes state that if the floor is framed with 2x8 floor joists, 16" on middle, and sheeted with a 5/eight" plywood materials, it might be tiled. Bear in mind, earlier than starting any construction project, check with your local building code officials. Higher safe than sorry.
In many houses, the floor just is not built or framed sturdy sufficient to help its own weight and the load of a tile floor. When floors will not be framed sufficiently they have a tendency to move perpendicular to the plane of the earth. This up and down motion stresses the bond between the tile and the thin by as making use of too much weight or load in one area.
The bond between the tile and the thin set could very well be robust enough to accept an overload a number of times. The number of times is directly associated to the quality of the thin set. Inevitably, even the most expensive thin sets will fail if subjected to continuous overloading.
Final, the most common reason why a tile will loosen from its thin set is improper installation. Careless contractors tend to tile weak floors. The thin set must be mixed in response to producer specification. If combined too wet or too dry, the thin set will not properly cure. This improper curing results in a weak floor.
Over time, most tiled floors will have a tile pop loose. This is to be anticipated and will be repaired. If over the lifetime of a floor, many tiles pop loose, a more critical problem is the cause. In my expertise, human error is the cause.
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