This kind of quality problem often occurs, which often causes contradictions between residents inside and outside the floor. Sometimes, due to the ignorance of the upstairs residents, the decoration of the downstairs residents has suffered great losses. The correct way should be to use cf-2000 cement-based permeable crystalline waterproofing agent as a waterproof layer before dealing with the ground decoration. First, it can prevent economic disputes caused by leaks. Second, we can ensure that the quality of our own housing floor will not decline because of cracks. You have to pay for it yourself. We have more than 30 years of experience in strengthening waterproof and plugging structures, providing free professional technical advice on repairing waterproof and leakage of concrete, and introducing the performance of plugging materials. Eliminate the troubles of repairing today, leaking tomorrow, repairing year after year and leaking year after year.