Grout Maintenance Tips: Grout fills the gaps between tiles. It doesn't just hold tiles together.
Why does the grout between tiles crumble?
Why Tile Grout Cracks And Crumbles: After installing new tiles in the house, the floor looks very clean and beautiful. But after some time, if the mortar or grout between the tiles gradually starts breaking, falling off or develops small cracks, then it should not be ignored by considering it a minor aesthetic problem. Sometimes the reasons behind the deterioration of tile joints can be related to the floor base, moisture or the way the tiles were installed. If these signs are paid attention to early, then big problems and repeated repair expenses can be avoided in the future.
What is the function of grout between tiles?
Grout is used to fill the gaps between tiles. It not only holds the tiles together but also helps prevent dirt and moisture from entering them. It also plays an important role in giving the floor a clean finish. However, grout is not flexible enough to withstand all the movement that occurs under the floor. When there is excessive movement in the base or tiles, the pressure exerted on the joints can cause the grout to crack or peel.
Movement in the base of the floor can also be the reason.
Building floors are not completely stable. Changes in temperature and humidity during seasonal changes cause slight expansion and contraction of building materials. Settling of floors in new buildings can also be a cause. If the surface beneath the tiles is weak, uneven, or poorly prepared, it can put pressure on the tiles laid on them. Installing tiles before the concrete has properly cured, or the expansion and contraction of a surface such as wood, can also cause cracks in the joints. In such situations, simply applying new grout over the top won't permanently solve the problem.
Mistakes in grout preparation can be costly.
One reason for tile joints to deteriorate quickly is improper grout preparation. Adding too much water can reduce its strength after drying. Furthermore, using too little water can also prevent the grout from setting and bonding properly. Properly filling and compacting the grout into the joints is crucial. Leaving gaps or using it without sufficient time can weaken the grout and cause it to crack. Therefore, when installing tiles, attention should be paid not only to the quality of the tile itself, but also to the grout and its application method.
Moisture can slowly damage joints
Bathrooms, kitchens, balconies, and other areas of the home where the floor is constantly exposed to water are more prone to grout failure. The repeated application and drying of water puts constant pressure on the joints. If proper waterproofing is not provided beneath the tiles, moisture can penetrate. In this case, grout flaking is not just a superficial problem. Therefore, if grout is repeatedly deteriorating in any area, it's important to investigate the source of the moisture rather than simply replacing it.
Heavy luggage and excessive pressure also have an effect.
Placing heavy furniture, machinery, or other objects on the floor can put additional pressure on tile joints. Constant foot pressure in high-traffic areas can also weaken the grout over time. Additionally, a heavy object falling directly onto the floor can cause a sudden crack in the joint. If the tile itself is in good condition and only the grout is broken, replacing it can fix the problem. However, if the tile is shaking or there's a hollow sound coming from underneath, the issue may not be limited to the grout alone.
How to save in the beginning?
If you notice a small crack in the grout, first determine if only the top layer is affected or if the tiles are also shifting. It's best to completely remove weak and broken grout and clean the joint. Only fill in new grout after removing dust and old debris. Applying new grout directly over old, broken grout may result in a long-lasting repair.
Always prepare new grout according to the manufacturer's instructions and allow it to dry sufficiently. Avoid exposing the floor to water or heavy loads. It's also important to have expansion or movement joints in place over large floor areas. These joints help reduce the pressure of expansion and contraction of the floor. When installing tiles, use proper base preparation, the right adhesive, and high-quality grout. Don't neglect waterproofing in damp areas. If joints are repeatedly cracking in the same area, tiles are shifting, or there are signs of moisture beneath the floor, it's best to have an expert inspect the area rather than simply attempting home repairs.
