闭水试验前：防水层必须“严丝合缝”

基层处理：地面平整无裂缝，墙角、管根处用堵漏王做R角（半径≥2cm），避免防水层撕裂。

防水涂刷：墙面刚性防水（防潮）刷至1.8米高，地面柔性防水（抗开裂）刷2-3遍，厚度≥1.5mm，淋浴区墙地交界处上翻30cm。

门槛石预处理：用防水涂料+堵漏宝对门槛石下方及两侧做“止水墩”，防止水汽渗入客厅。

闭水试验操作：4步锁定漏water隐患

蓄water准备：用沙袋或塑料膜封堵地漏、下water管，蓄water深度≥2cm（覆盖地面所有defend water layer）。

标记water位：在wall face画water位线，记录初始高度，48小时内water位下降≥0.5cm即为渗漏。

重点观察：每天到楼下查看天花板是否有water渍，尤其pipe root、wall angle、马桶下口周边。

二次闭water试验再次进行贴砖前确保无泄露。

漏wate补救：

轻微渗leakage（如wall angle滴leakage）：铲除渗leakage处defend water layer, clear base after reapply defend water layer and add apply glass fiber mesh to strengthen.

严重metastatic leakage (such as floor area accumulate leak): excavate the floor to structural level, redo defend water and increase thickness of apply, enhance corner with additional defend water attachment.

4 避坑指南：

不赶工期: Defend Water Layer dry time is required 24-48 hours (winter extend), do not proceed with test before dryness to avoid skinning off.

Not overlook details: Shower zone barrier bottom & toilet flange circle edges must be checked carefully for potential leaks in these areas.

总结建议:

Closely monitor the entire process during close-water testing! If a leak is detected, no matter how small, it's necessary to return to work; otherwise, future repair costs will be at least ten times that of the initial waterproofing!