近年来,建筑物外墙饰面趋向浅色。有的建筑物由于窗台、阳台、压顶、突出腰线等部位没有做好流水坡度或未做滴水槽(又称滴水线角、滴水线),墙面污染问题很突出。如图1是传统的滴水槽做法,由于施工时做半圆形凹槽比较困难,凹槽内常会被砂浆糊住,因而滴水效果不理想。图2由于窗台粉成倒斜坡,为施工所禁忌。滴水槽如果做不好,会 In recent years, the facades of buildings have become lighter in color. In some buildings, due to windowsills, balconies, roofs, protruding belts, etc., there are no drafts or drip tanks (also known as dripping lines, dripping lines), and the problem of wall contamination is very prominent. As shown in Figure 1, the traditional drip tank approach, because the construction of semicircular groove is more difficult, the groove will often be stuck in the mortar, so the dripping effect is not ideal. Fig. 2 Due to the sloping window sills, it is contraindicated for construction. If the drip tank does not work well, it will