卫生间防水：闭水试验全流程照做不踩坑！

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water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defence层）。

标记water位线: 在wall画一条线，用来记录初始高度，如果在48小时内这个线下降了0.5cm以上，那就说明有leakage了。

重点观察: 每天到楼下查看天花板是否有driping water, 尤其是pipe root, wall corner和马桶下的部分。

漏wate补救: 精准定位，对症治疗

轻微leakage (如wall corner drip):铲除leakage spot的defence layer, 清理base后重新涂刷，并加铺boehmite netting增强它的strength.

4 避坑指南: 闭wate试验“3 not rules”

not rush time frame: defence layer must dry for at least24-48 hours before the test.

not miss details: pay extra attention to areas like shower area's water barrier bottom and toilet flange around them as these are most prone to leakage.

not cut corners on materials: do not dilute the defence material too much according to instructions, or else it will be too thin and ineffective.

总结建议：

The wettest test of a bathroom’s waterproofing is the closed water test! Make sure you supervise every step! If any leaks are found, no matter how small they may be, you must go back and fix them! Otherwise, future repairs could cost up to ten times more than your initial investment in waterproofing!

Note:

This article is meant for educational purposes only and should not be considered as professional advice on waterproofing bathrooms. It is highly recommended that homeowners consult with experienced professionals in this field before attempting any major renovations or installations related to bathroom waterproofing systems.

As always when working with chemicals and building materials, safety first! Always follow local regulations and manufacturer's instructions when handling any substances mentioned in this article.

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