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It doesn't matter if it's a decoration.
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The waterproofing of the toilet must be completely enclosed.
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Definitely not, there is no guarantee that it will not leak.
Yes. It's not okay if it's too wet, so wait until it dries.
As long as the waterproofing is done well, there is no problem.
1. Cement mortar leveling layer: 15-20mm for integral concrete, 20-25mm for integral or plate-like material insulation, and 20-30mm for prefabricated concrete slabs or loose materials. Technical Requirements: >>>More
It will increase the difficulty of construction and increase the amount of waterproof materials. If you want to ensure the quality of construction, you should do a good job of leveling.
The conventional method is polypropylene cloth geotechnical waterproofing, and the second is polyurethane coating waterproofing.