1 wrong materials. If opt for the waterproof materials that water amount of resistance and corrosion resistance are very poor, the rot, softening, swelling, shrinkage destructive phenomenon occur, or soon after curing, cracking, holes, impurities, toughness Tiles and low elongation, water in addition to poor phenomenon occur. Improper collection, choosing the waterproof materials that is not suitable for the bathroom, the sheet joint bond strength seriously isn't enough, encapsulating node lax, triggering leakage.
2 bad design: real slab, not designing a watertight layer; ground floor drainage mountain is too small, less in comparison with 2%; drainage direction is definitely not accurate; floor drain, bathtub bottom elevation design is unreasonable, or maybe without detailed figure, causing surface flooding, poor drainage; pipeline hole design seriously isn't accurate, and holes through the floor.
3 bad Toilet construction: poor excellent of construction; the original bathtubs waterproof bond seriously isn't strong; coating, waterproof layer thickness seriously isn't enough; the coating process is usually unreasonable, causing shrinkage cracking; multi-point seapage and streaming leakage, etc.; triggering sand, crisp, fall ash, the leakage between floor and the wall.
4 deficit of management, disrepair, leaking increasingly considerable; while re-decoration, the original watertight layer destructed.
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