檢視防水层的原始碼

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中文名;防水层

目    的;防止雨水进入屋面

属    于;材料层

高出地面;100毫米
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'''防水层'''：为了防止室内用水、其他用水或[[地下水]]进入屋面，渗入墙体、地下室及地下构筑物，渗入楼面及墙面等而设的材料层。

对理想防水层的要求可以简单地概括为施工后不透水和在设计年限内不透水 ,且是[[经济]]的。这要求防水层不仅保持良好的完整性 ,而且还具有一定的抵抗外界破损的能力。<ref>[https://wenda.so.com/q/1462442458722163 什么叫刚性防水层?什么叫柔性防水层],360问答 , 2016年1月3日</ref>