首先，我們要找到滲水的緣由，普通外墻呈現滲漏的緣由不外乎以下幾點：

　　First of all, we need to find the reasons for the seepage. The reasons for the seepage of ordinary exterior walls are as follows:

　　1、外墻涂料老化，起皮；

　　1. Exterior wall coating aging and peeling;2、外墻抹面砂漿開裂、零落等；

　　2. Cracking and scattering of exterior wall plastering mortar;3、外墻瓷磚勾縫開裂、零落等；

　　3. Cracking and scattering of the hook seam of external wall tiles;4、屋面女兒墻根或屋面防水呈現失效；

　　4. Roof parapet roof or roof waterproofing is invalid.

　　5、窗戶四周呈現裂痕現象……這些現象構成外墻迎水面防水失效，這是外墻滲漏的直接緣由。

　　5. Cracks appear around windows... These phenomena constitute the failure of waterproofing on the water face of the external wall, which is the direct cause of the leakage of the external wall.

　　找準滲漏的緣由，對癥下藥就可以了：一、確保找平層的施工質量1、找平層抹灰前的工作：應留意砌體批灰前表面的濕潤，噴灑水充分，砌體部分與混凝土部分交接處的外墻面在抹灰前要用200㎜寬16#鋼絲網片掩蓋并加以固定，以抵御因不同防水堵漏材料的收縮系數不同而惹起的開裂。對混凝土墻面的浮漿、殘留的模板木屑，顯露的鋼筋、鐵絲一定要清算干凈，以利抹灰砂漿與基層粘結堅固。

　　To find out the cause of leakage, we should take appropriate measures: 1. Ensure the construction quality of leveling layer 1. Work before plastering leveling layer 1. Pay attention to the wetness of the front surface of masonry before plastering, spraying water adequately, and cover and fix the outer wall at the junction of masonry part and concrete part with 200_16_wide wire mesh before plastering, so as to resist the shrinkage coefficient of different waterproof materials. Cracks caused by differences. The exposed steel bars and wires must be cleaned up for the floating slurry of concrete wall and the residual template sawdust, so as to make the plastering mortar bond with the base firmly.

　　2、找平層抹灰時應留意：

　　2. When plastering the leveling layer, attention should be paid to:

　?、派皾{應嚴厲按配比中止，嚴厲計量，控制水灰比，嚴禁施工過程中隨意摻水;⑵對抹灰砂漿應分層抹灰，特別是高層建筑，局部外墻抹灰較厚，這就需求中止分層批灰，每層抹灰厚度不應超越2㎝，如厚渡過大，在分層處應設鋼絲網;⑶批灰砂漿可用聚合物防水砂漿;(1) Mortar should be severely discontinued according to mix ratio, metered strictly, water cement ratio controlled, and free mixing of water during construction is strictly prohibited; (2) Layered plastering should be applied to plastering mortar, especially in high-rise buildings, where the local exterior wall is thicker, which requires the discontinuation of layered batch of mortar, and the thickness of each layer should not exceed 2_, if the thickness of plastering is too large, steel wire mesh should be set at the layers; (3) Polymer waterproof mortar can be used for batch of mortar;⑷外墻抹灰腳手架拉接筋等，應切割后，喇叭口抹實壓平，定漿后，可用鐵抹子切成反搓，然后再刷一道素水泥漿。

　　(5) External wall plastering scaffolding tension reinforcement, etc., should be cut, trumpet mouth plastering flat, after slurry, can be used to cut iron plaster into reverse rubbing, and then brush a plain cement slurry.

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