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What Causes a Floor Tile to Loosen?
Many residenceowners 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 potential to understand why floor tiles come loose without employing the help of a flooring professional or common contractor. Allow me to tell you why this happens.
First, it is necessary 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 mostly material containing a particular blend of additives which give the combination the ability to softly flex under strain and return to its original position. This strain, also known as load, might be the results of climatic changes, such as the passing of the seasons, or from a physical nature, equivalent to the load of a person or item placed on the tile.
Generally the strain or load will be too much for the thin set. If a heavy object is positioned on the tile floor, such as a piano, it could be very possible to overload an individual tile. If this occurs, the bond between the tile and the thin set may 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 is a loose tile only held in place by the grout surrounding its 4 sides.
Next, the construction of the floor needs to be considered. Before installing any type of tile floor, the contractor or flooring professional ought to survey the sub floor. The sub floor should be constructed rigid sufficient to assist its own weight, the weight of the tile, and the weight of the items positioned on it. Most local codes state that if the floor is framed with 2x8 floor joists, sixteen" on heart, and sheeted with a 5/eight" plywood materials, it will be tiled. Keep in mind, before starting any construction project, check with your local building code officials. Better safe than sorry.
In lots of properties, the floor just isn't built or framed robust sufficient to support its own weight and the load of a tile floor. When floors aren't framed sufficiently they tend 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 an excessive amount of weight or load in one area.
The bond between the tile and the thin set could very well be sturdy sufficient to just accept an overload a couple of times. The number of occasions is directly related to the quality of the thin set. Inevitably, even the most costly thin sets will fail if subjected to continual overloading.
Last, the most typical reason why a tile will loosen from its thin set is improper installation. Careless contractors are inclined to tile weak floors. The thin set must be mixed in accordance with manufacturer specification. If mixed too wet or too dry, the thin set will not properly cure. This improper curing ends in a weak floor.
Over time, most tiled floors will have a tile pop loose. This is to be expected and could be repaired. If over the lifetime of a floor, many tiles pop loose, a more serious problem is the cause. In my expertise, human error is the cause.
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