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Of course, it is waterproof first, and after waterproofing, it is necessary to do a water storage test, and it can be backfilled only if there is no water leakage.
Do waterproofing first, it is best to use waterproof materials with water, and then paste tiles after confirming the effect, otherwise you have to rework.
Toilet waterproofing practices:
1. Ground treatment. >>>More
It is better to do waterproofing first, and then make the door frame. But the waterproof material must meet the national standard, don't be greedy for cheap. If you don't want to dig the ground and dig the wall in the future, just listen to me.
Waterproofing must be done before tiling.
The main reasons are: >>>More
Do hydropower first, and then do waterproofing developers do poor waterproof quality, or do it yourself again, Dongfang Yuhong, JCDecaux waterproof quality is very good, as for the process, or let them do it themselves, you just have to pay.