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Yes, do cement mortar leveling after finishing, so as not to break the waterproof layer when tiling.
The waterproofing of the bathroom is very important, and it is generally necessary for a professional master to do it, and after doing it, it is necessary to release the water to test, and it cannot be tested after pasting the tiles.
It is best to follow the specifications, clean the walls, and then paint a layer. >>>More
It needs to be painted twice.
Bathroom waterproofing process: >>>More
If the original waterproof layer is not damaged, it is basically no problem to do it again. However, when doing hydropower, it is very likely that the original waterproof layer will be destroyed, so it is best to do waterproofing twice just in case. >>>More
Absolutely not. 1. Clean up. 2. If uneven, waterproof mortar leveling. >>>More