There are several reasons why there are cracks on the ground in the toilet room and water leakage.
1. Waterproof materials with poor water resistance and corrosion resistance are selected. The material appears rot, softens, swells, and breaks, or shrinks, cracks, holes, impurities, low strength and elongation, and poor water resistance. The paint and base layer have low bond strength or do not adhere. Inappropriate material selection does not apply to waterproofing membranes in the toilet room. Adhesive strength of the coiled joints is not enough, and the nodes are not tightly sealed, causing leakage.
2. The design is not good: Cast-in-place concrete floor, no waterproof layer is designed; floor drain slope is too small, less than 2%, drainage direction is inaccurate, floor drain, yin and yang angle, bath floor design is not reasonable, or no details Drawings, resulting in water in the ground area, poor drainage; the design of the position of the reserved hole in the pipeline is inaccurate, and the holes in the floor pass through;
Iii. Construction is not good: The floor of the building is poor in construction quality due to the screeding layer, the original waterproof layer is not bonded firmly, the thickness of the coating film and waterproof layer is not enough, the coating film construction process is unreasonable, shrinkage and cracking are caused, etc. Leakage, string leakage, etc.; leveling layer construction quality is not good, causing sanding, crisp, loose ash, etc., floor floor and wall surface junction leakage;
4. Lack of management, long-term disrepair, leakage is becoming increasingly serious; when the second decoration, the original waterproof layer will be destroyed.
How to prevent bathroom floor cracks and water leakage?
We can take appropriate measures to prevent and control; for the case of cracks in the toilet room and leakage of water, depending on the size of the crack and take different approaches. Generally, the surface layer is removed along the fracture to expose the cracks in the waterproof layer. If the crack is wide, the width and depth of the groove are not less than 10mm, and the debris is removed and filled in the groove. Sealing material, after the laying of the waterproof membrane layer with the carcass reinforcement material and the original waterproof layer overlap seal, repair the surface layer after the test water does not leak. If the cracks are subtle, the surface layer of the ground may not be removed, and after cleaning the surface of the crack, a synthetic polymer film having a similar color to the ground may be applied along the crack.