In the process of paving floor tiles and wall tiles, it is necessary to ensure that the walls and floors are clean and tidy, avoiding the intervention of impurities and reducing the adhesion between the tiles and the walls.
Once the tiles are hollowed out during the paving, as long as some of the bricks loosen and fall off, it may cause other related tiles and corners to fall off.
Judging from the tiles removed from Ms. Zhang’s house, the cement mortar behind the bricks is unevenly applied, and some parts are not attached to the cement mortar.
Ms. Zhang from a certain district in Fangshan reported to the newspaper “Guangxia Times†that during the construction process, she found that many wall tiles and floor tiles had some empty drums, and some of them fell off. The construction personnel did not explain the reasons and could not give an effective solution. Program--
“The renovation has not yet completely ended, and the new bricks in the house are almost halfway down.â€
Recently, Ms. Zhang, who is in the mountainous area of ​​her home, was overwhelmed by the renovation of her home. It started in mid-April and was completed at the end of May. Ms. Zhang, who thought that she could successfully complete the renovation, never imagined that there were multiple floors of floor tiles and wall tiles in her bathroom, kitchen, balcony aisle and so on. “At first I just tested it myself by tapping. I didn’t expect it to be a problem.†Ms. Zhang said, “This situation can’t be reassuring. I can only ask the construction team to lay most of the tiles. The place to pay for rework."
In fact, the phenomenon of home tile detachment has recently occurred frequently, and there are even hidden dangers. It is even more puzzling that whether it is a new decoration or an old project, cracking, drumming, and falling off make the tile wall become heavy. disaster area. Whether it is repaired or not, the consumer’s money is not spent, and there is no shortage of energy. What is the reason why the tiles in the home are so fragile? Recently, the Beijing Youth Daily “Guangsha Times†invited relevant experts to visit the consumers’ homes.
Wall treatment is not in place
Sundries separating bricks and walls
"Behind the removed tiles, in addition to the cement mortar, there are a lot of gray-white powder mixed in, I don't know where these things come from." Ms. Zhang said her doubts, "I guess these dusts affect the tiles." The firmness of the paste."
Indeed, in Ms. Zhang’s home, it can be found that the cement on the back of the tile is covered with a lot of impurities. Xu Guozhong, President of Million Homes Supervision Company, explained to the scene and explained: "If you can't clean the wall before paving the wall tiles, the impurities will be sandwiched between the cement mortar and the tiles, and a compartment will be formed to reduce the bricks and walls. The adhesion, which causes the tiles to fall off."
Need to remind consumers that in order to prevent the joint is not strong, improve the adhesion, workers generally pull the wall before laying the tile, increase the wall roughness by painting the paint, brushing the wall surface, etc. But this does not mean that impurities and dust can be hung on the wall. Before cleaning the tiles, keeping the wall clean is a basic requirement.
The mortar is not full
Cut corners and empty drums
Judging from the tiles removed from Ms. Zhang’s house, the lack of cement mortar is also the main culprit for the large area of ​​the bricks falling off. “The removal of the tiles is almost a whole piece, which proves that there is basically no sticking behind the bricks.†Ms. Zhang said, “The only part of the adhesive is glued to the wall, and most of the middle is not covered with walls. body."
Cut corners are almost everywhere in the home improvement, especially for tiles that use a lot of "invisible" materials. Since the cement mortar is hidden behind the tiles, as long as the surface
Without problems, it is difficult for consumers to pay attention to how much material is used behind each brick. In this regard, Xu Guozhong said that there are clear provisions in the construction specification requirements. Under normal circumstances, the corners of a single tile on the wall should not exceed 5% of the total amount of paving, which means that the floor tiles and wall tiles The central location is that no empty drums are allowed. And once the corners of the wall tiles are more than 5%, consumers should choose to re-lay them to avoid the danger of large areas of the tiles falling off.
During the decoration process, the consumer can tap the tile with a small hammer. If the sound is dull, the paving is more realistic. If the sound is crisper, it means that there is an empty drum in the position.
Different brick materials have particular attention
A "slurry" is generally buried
In fact, in addition to cutting corners, many home improvement companies and home improvement guerrillas save trouble, wall tiles use the same cement mortar, the same material selection, the same ratio, it sounds unified, but consumers must not commit Confused, the various brick materials are different, and the materials that bond them to the wall are bound to be different.
In general, the density of wall tiles is relatively small compared to floor tiles, and the water absorption rate is relatively high. Water absorption rate refers to the ability of the product to adsorb and penetrate water. It is the ratio of the quality of the water added to the quality of the original dry brick after the tile is placed in the water to fully absorb the water.
To put it simply, if the wall tiles with high water absorption rate and the floor tiles with low water absorption rate use the same cement mortar, the wall tiles may be more than the moisture in the cement mortar from the back, which may cause cracking of the tile surface after thermal expansion and contraction. Or the tiles fall off.
Of course, in addition to the need to arrange different auxiliary materials for different bricks, the choice of the brick itself is equally important. The low water absorption rate of the tiles is pursued blindly, and the tiles are not bonded to the cement mortar, which also causes the cement mortar to be The empty drum between. In the formal packaging of tile products, the characteristics of the product, the appropriate method of paving, etc. are usually given, and consumers and workers need to pay attention.
Construction technology is not professional
Hundreds of troubles
Of course, good products have to be equipped with good craftsmanship, and then full preparation, if the professional quality of the construction personnel is not enough, it is difficult to show good results.
Xu Guozhong said that the scattered workers in the home improvement market and most of the guerrilla workers have not received professional construction training. "The skills learned from the teachers and fathers of the previous generation are used in actual construction." Xu Guozhong said, "There are no professionally trained construction methods and techniques that will make a mess of home improvement."
What's more, many of the old methods of the past are no longer applicable to the products and materials in the current market, and professional workers should complete the construction in strict accordance with various standards.
In addition, many guerrillas have used a lot of different workers' work in the same home improvement process because of the mobility of their personnel. The uneven craftsmanship and treatment methods have hidden hidden dangers in home decoration. Xu Guozhong said that the choice of a large-scale, high-quality brand of decorative companies, will be more than a guarantee.
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