Tiles of different colors and shades need specific analysis.
If the newly-laid tile, the bottom row of colors deeper than the top of the tile, this situation is more common in the tile laying process. This is related to the construction method. In general, the steps to be taken for wall tiles are: first, pave from the bottom to the bottom of the wall, to the top, and then tile the floor tile, and finally put it on the bottom. A layer of tiles, this construction, the walls of the penultimate layer above the wall because the upper and bottom of the tile is empty, the moisture is more easily distributed, and finally the bottom of the tile, the lowest layer of tile cement mortar Water is difficult to disperse, and the moisture in the cement mortar behind the upper tiles will also flow downwards, which leads to the increase of water content. Therefore, this problem is very common. Under normal circumstances, the color of the lower tiles can be gradually restored after a period of time.
However, if you do not see any signs of lightening after a period of time, it is advisable to look for tiles and construction parties to take a look and do a detailed analysis!
Case 1: Different shades, irregularly distributed on the ground
1. The body of ceramic tile is loose, and the water absorption rate is too large: The embryonic body of the ceramic tile is too loose and the water absorption rate is too large. After the ceramic tile is tiled, it not only absorbs the moisture in the cement mortar, but also the cement slurry can penetrate into the tile body. In the ceramic tile, there is a residual cement residue, causing the tiles to have different shades.
2, there is a problem with the color of the tile: in the paving without carefully checking the color of the tile is the same, the color difference of the tile itself, not found, resulting in the appearance of different colors after paving.
Case 2: There are different shades of law
1, when the tile replenishment did not pay attention to the color number problem: the same type of tile products, if it is a different batch of production, the color may be different, if the process of filling the tiles, did not pay attention, it will also There is a problem of color difference.
2. Due to the construction sequence of the tiles, the tiles may have shades of color. Generally, the wall tiles are laid from the bottom of the bottom row to the top, then paving the floor tiles, then laying the tiles and then laying the walls. In the lowest part of the floor, the walls and floor tiles are waterproof, and the bottom layer flows downwards due to the upper water, and the water itself is difficult to dissipate. Therefore, the colors of the lower and upper tiles are different. This kind of shade is different in color. The general appearance is that the color of the bottom layer and the top is different.
Case 3: Water stains on the wall of the building or outside the space
1. There may be a problem of water leakage upstairs: The neighbors upstairs are treated to prevent water from leaking into the walls downstairs. Water is constantly used along the walls due to frequent use of water (such as showers) upstairs. Leakage to the downstairs causes the moisture in the cement mortar of the tile base to be difficult to dissipate, resulting in different shades of tile. For the exclusion of this point, you can check whether there is water at the top of the bathroom and the outside wall of the bathroom wall. The problem of stains, if not, this point can be ruled out.
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