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女儿墙一般用砖砌于屋面四周,整个墙身无伸缩缝,处于室外剧烈的气候变化中,极易产生裂漏。女儿墙又位于屋面雨水汇集最多的下坡水处,一有渗漏就很严重,成为刚性屋面防水的薄弱环节。一、女儿墙渗漏的原因根据调查和工程实践,刚性屋面女儿墙渗漏的原因是: 1.防水层混凝土与女儿墙连接不当:防水层混凝土与女儿墙交接处如用刚性连接,则由于温度变化,必然在连接处开裂。此时若防水层混凝土泛水不够高,屋面积水超过泛水高度,或滴水线不起作用,雨水便会从缝隙中渗入室内(图1①)。
The parapet wall is usually made of bricks on the roof, and there is no expansion joint in the entire wall. It is exposed to severe outdoor climate changes and is prone to cracking. The parapet is located in the downhill water with the most rainwater in the roof. Once the leakage is serious, it becomes a weak link for the rigid roof. First, the reason for the leakage of the parapet wall According to the investigation and engineering practice, the reasons for leakage of the parapet wall of the rigid roof are as follows: 1. Improper connection between the waterproof layer concrete and the parapet wall: If the connection between the waterproof layer concrete and the parapet wall is rigidly connected, then Changes in temperature must crack at the junction. At this point, if the flooding of the waterproof layer is not high enough, the area of the house exceeds the height of the flooding, or the dripping line does not work, rainwater will seep into the room through the gap (Figure 11).