Recently, there was a complaint on the Black Cat complaint platform owned by Sina about ceramic tiles chipping away and porcelain falling off: A consumer purchased a certain brand of wall tiles and floor tiles on JD.com, but the tiles were laid on the wall less than a year ago , before the house was moved in, the porcelain was falling apart. The consumer contacted the merchant to solve the problem. After a door-to-door inspection, the merchant confirmed that the reason for the slight stretch of porcelain on the corners of the wall tiles was the deformation of the building wall and improper sealing operation, and was not a quality issue with the tiles themselves. For this reason, consumers do not understand or agree.
Leaving aside the series of disputes that have arisen between the two parties over this matter, the falling porcelain tiles have attracted the attention of Zhongtaojun.
Zhongtaojun searched the Internet and found that there are many cases of chipping and chipping of ceramic tiles after they are laid. In some cases, the ceramic tiles chipped and porcelain fell out soon after they were renovated and moved in. In some cases, like the complaints on the Black Cat Complaint Platform above, the new house was renovated and the ceramic tiles chipped and porcelain chipped away after a period of time before moving in. This phenomenon has triggered heated discussions among many netizens, and many senior ceramics builders have also expressed their opinions on the reasons and solutions for chipping and chipping of ceramic tiles.
Through collection, induction and summary, Zhongtaojun found that there are mainly the following six reasons for chipping and chipping of ceramic tiles after they are laid.
Reason 1:
Tile quality defects
The first reason is the quality of the tiles themselves. If the ceramic tile is made of ceramic tile, its water absorption rate will be relatively large. If the water absorption expansion coefficient of the tile is too large, it will easily swell and crack and deglaze. What's more, the glaze layer of some ceramic tiles is not fired but sprayed on. The quality of these ceramic tiles is very poor, and the glaze layer on their edges is very fragile, and it is easy for the corners to chip and fall off.
It should be noted that chipping and chipping caused by the quality of the ceramic tiles themselves is relatively rare, because the quality of these ceramic tiles is so poor that few consumers will buy them. If you unfortunately buy such tiles, the merchant (manufacturer) will be responsible for the loss of the tiles chipping and porcelain falling off.
Reason 2:
The paving does not leave enough gaps
The pasting material used in tile paving is cement mortar or tile adhesive. When the temperature or humidity changes too much, the tiles and pasting materials will expand and contract with heat. Under the effect of expansion due to heat or moisture, if the tiles and the adhesive material expand and contract and the gaps between the tiles are insufficient, stress will occur between adjacent tiles and they will squeeze together, resulting in problems such as hollowing, chipping, and cracking of the tiles. . This is why many paving masters often emphasize that sufficient gaps should be reserved for ceramic tile paving.
In addition, when purchasing ceramic tiles for decoration, owners should try to choose porcelain tiles with low water absorption and better quality to reduce the risk of the ceramic tiles chipping due to water absorption and expansion.
Reason 3:
Caused by chamfer cutting
When laying wall tiles, you will inevitably encounter corner areas. This location is called the sun corner. There are many ways to lay ceramic tiles at the external corners. One of them is to install the ceramic tiles with chamfers. That is, the edges of two ceramic tiles are beveled at a 45-degree angle and then they are seamed and laid on the wall. If you use this method to treat the sun corners, the gaps between the ceramic tiles will be smaller and the effect will be beautiful.
However, there is a risk of corner and edge chipping after the tiles are chamfered and laid on the wall. The reason is that the edge of the tile becomes thinner and more fragile after being beveled at a 45-degree angle, and the two chamfered tiles are almost close to each other (usually 1-2 mm) when they are laid on the wall. Although the tiles are beautiful, the tiles and cement mortar will expand when heated and wet, causing the tiles to squeeze against each other, eventually causing the edges of the tiles to collapse.
To avoid chipping and exploding edges when paving ceramic tiles with chamfers, you can reserve enough gaps in the ceramic tiles to alleviate excessive extrusion caused by expansion and contraction of the ceramic tiles due to thermal expansion and cold contraction. In addition, for the construction of the external corner of ceramic tiles, you can also choose other techniques that will not cause chipping or edge explosion, such as using external corner strips.
Reason 4:
The sewing was not done well
There is also a certain relationship between the chipping of ceramic tiles and the beautiful seams. If the quality of the caulking agent you choose is not good, it will become very hard after construction and will not have a buffering effect when the ceramic tiles expand with heat and shrink with cold, which will eventually lead to chipping and chipping of the ceramic tiles. In addition, porcelain may also fall off if workers perform improper operations when sewing. For example, using a spatula during seaming can easily remove the glaze from the edge of the ceramic tile, especially for ceramic tiles with rich glaze layers such as matte glazed tiles.
Reason 5:
Improper construction
There are many types of ceramic tile chipping and chipping caused by improper construction by workers. For example, when cutting ceramic tiles, you accidentally break a corner and drop the porcelain; when laying the ceramic tiles, you bump into the edge of the ceramic tiles; after the ceramic tiles are laid, you do not protect the tile surface before making ceilings, installing toilets and faucets.and other processes; accidentally knocking off porcelain when caulking or cleaning brick surfaces, etc.
It should be noted that ceramic tiles can easily break corners and edges during transportation and handling. In this case, the tiling master must discover and deal with it in time. Under normal circumstances, if the cracked corners and chipped edges of the tiles are obvious, the paving master cannot lay them directly. The owner must be notified in time and asked to contact the merchant to replace the tiles.
Reason 6:
The porcelain chipped when prying the leveler
In some cases, the chipping of ceramic tiles after they are laid is also related to the leveler. This kind of chipping usually occurs at the edge of the brick. It is usually caused by the tiling master accidentally chipping the glaze of the brick when prying the leveler. Paving masters generally use a reusable T-shaped tile leveler. The rotatable cover above the leveler is made of plastic, and the bottom is made of iron or copper wire. Although this kind of leveler can be reused, it is relatively troublesome to take it out. If you pry it hard, it will easily break the glaze on the edge of the tile.
When using a T-shaped tile leveler, you need to pay attention to skills. After putting the leveler into the cracks of the bricks, rotate the leveler 90° before tightening it to remove the cement mortar in the back and forth path of the leveler to facilitate prying later. .
As for the reasons why ceramic tiles chip and fall off after they are laid, many tiling masters have different opinions and there is no conclusion; the most ridiculous reason is that the house has been uninhabited for a long time and is "unpopular".
A paving master said that in addition to factors such as the lack of seams, the most important reason for chipping and chipping of ceramic tiles after they are laid is that they are not "popular" due to lack of occupancy. He believes that if someone stays in the house for a period of time after two months of decoration, this problem will generally not occur. Many old masters agree with this statement and think it is a natural phenomenon. Finally, a netizen came forward and said that after the decoration, he often went to the new house to open the windows for ventilation. Even if he did not move in, he would not lack "popularity". In the end, he still did not escape the chipping and falling of the porcelain. Therefore, the statement that lack of "popularity" causes chipping and porcelain tiles has yet to be verified.
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(Author: Sitao)
