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It needs to be redone, because in the process of reinstalling the bathroom, the worker master will not guarantee that it will not destroy the waterproof layer that was done before, if you are on the first floor, you don't have to do it again, if it is not the first floor, it is recommended to redo it, because once the water leaks and has to be renovated, the loss caused is not a little bit, and the current waterproof is not too expensive.
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To redo, the waterproof is mainly the ground and the wall, the wall is about meters high, the decoration people are generally the wall with the shower to do the meter, the rest is about 30 cm.
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Before the necessary decoration, the wall tiles and floor tiles of the past will be knocked out, which will destroy the original waterproof layer.
So it's better to redo the waterproofing.
Summary. It depends on the situation, generally speaking, if it is a waterproof layer damage caused by water seepage, in fact, it is very simple to solve it, as long as you buy some anti-permeability waterproofing agent, pour it on the drip and river surface after the water according to the instructions, wait until the waterproofing agent dries naturally, and wait until 24 hours to clean up the solid waterproofing agent on the tile. >>>More
If the bathroom leaks, it can be redone for waterproofing, waterproofing of water pipe grooves, and moisture-proof ceilings. >>>More
Demolition and modification of bathroom decoration price: If a bathroom needs to be demolished and modified, it will be necessary to bear part of the demolition and renovation costs. Now the labor cost is already high, and the cost of demolition + removal + material transportation is about 3,000 yuan. >>>More
How much does it cost to renovate a bathroom? Interpretation of the detailed decoration quotation list - Chinese.
Generally, it is about 2,000-3,000 yuan. Including the cost of smashing, pulling away garbage, the cost of waterproofing contractors, buying tiles, waterproof coatings. >>>More