It is a poor idea to sell loose tiles to a homeowner who is not particularly knowledgeable about home improvement. The lifting causes of tiles from the floor show considerable damage to the tile installation and give insight into what is occurring underneath the surface of the floor. It is also possible that it is a cautionary indicator. In most cases, it is essential to remove the tiles in order to inspect the surface of the floor that lies underneath them. Under the tile, moisture causes a variety of problems, the worst of which is brought to a head at the point where the tile meets the substrate (substrate is the mounting surface of the tile). 
If moisture seeps into the concrete slabs of your home and causes the tiles to rise or become unstuck, you may have an undiscovered plumbing leak in one of your walls. Remove every single piece of broken tile that is hanging free. Examine the substrate thoroughly, whether it is made of plywood, cement board, or concrete. Examine the area for dampness as well as mold that is associated with moisture. If there is moisture seeping through your concrete slab, you should get in touch with a specialist. Applying bleach to eradicate mildew is a necessary step before repairing the tiles. If the situation is critical, you should consult with a mold expert. Another common cause of floating tiles is motion in the substrate underneath them. For example, poorly constructed cement slabs will ultimately swell, which will cause the tiles on the floor and walls to become loose and fall off. 
If the concrete slab behind the tiles is fractured or swollen in any way, the tiles may get dislodged. Conduct a thorough inspection of the subfloor, and pull up any tiles that are loose. Simple remedies are enough in certain instances. In the worst of conditions, the waste needs to be removed. Tiles that were not installed correctly will start to come away over time. In order to save a few bucks, for instance, a tile contractor could decide to employ a cheaper, raw, thinner set of porcelain tiles rather than a more expensive, finished set. A thin set that has not been adjusted properly will eventually become loose and will not adhere to the porcelain tile properly. If the tiles are clean and the majority of the thin-set is still on the substrate, then a low-grade thin-set is probably to blame for the problem. Failure of tiles can also be caused by the use of inappropriate materials, such as when tiles are installed on the drywall in a shower. 
Another possible element that contributed to the issue is the lack of joints that might be moved when the first installation was performed. Because they allow the floor to "bend" slightly and account for any underfloor expansion or contraction, they are an essential component for floors covered in ceramic tiles or natural stone. If you don't have them, the pressure might cause the tiles to crack noisily, which would be described as an "explosion of tiles." It is possible that it will be required to remove and destroy the elevated tiles as well as the substrate, despite the fact that the underlying problem with the raised tiles is unknown. When removing tiles that are loose, use patience. Make use of a carpenter's hammer and a small stick in order to get rid of it. First of all, try not to be too forceful. Utilize a carbide saw to cut through the grout that surrounds the tile before making any attempts to remove the tile. Start pulling up around the first piece as soon as you hear a slight click in the middle. This demonstrates that the component is not attached to the board in a secure manner. To prepare the tiles for future usage, grind the back side of each one using a grinder measuring 4 inches. It is important to clean the board and perform any necessary repairs before reinstalling it. 
The presence of dampness can cause damage to flooring and tiling. The moisture that comes from the crawl space has the potential to completely soak the subfloor, which can lead to rot, mold, and separation. As a consequence of this damage, tiles could shift in their positions. In the event that the flooring is broken from below or if the tiles absorb moisture as a result of recurrent water leaks, the tiles may expand. Even the tiniest amount of water that is sprayed on your tiles on a daily basis has the potential to cause mold and rot in the flooring underneath them. By placing a separating membrane to the flooring prior to tiling, it is possible to prevent damage to the subfloor that is caused by spills.
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