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It's not good, only the one that does the ground waterproof.
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What is this? What you want to say is that you are afraid that the upstairs bathroom will drip to the first floor or something. I want to help you, but I don't understand what you mean.
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If you have any questions about waterproofing, welcome to ask me, I am a professional.
This is not the case with water-based permeation crystallization (DPS) and cement-based permeation crystallization (CCCW), so don't be fooled by silicone waterproofing agents that work well on the outside.
1. Toilet waterproof construction technology, process and precautions. >>>More
Polyurethane.
- In fact, it is also very good to use paint to make a bathroom - similar materials, generally most of the materials I see are polypropylene to make toilets, the price of polyester is slightly higher, JS, etc., good construction, and the node is also dealt with without any hidden dangers. >>>More
Dig the best permeable waterproofing can be done by yourself. >>>More
1. Ground treatment.
Before waterproofing, be sure to level the ground, if the ground is uneven, it may affect the effect of waterproofing, and may also cause cracking and leakage caused by uneven thickness of waterproof coating. Floor drains, wall corners, pipe heels and other joints should be painted with high elasticity and flexible waterproofing, because the joints between the wall and the floor of the bathroom will be displaced, and water seepage is most likely to occur. >>>More