In light of serious building exterior leakage problems, starting from aspects of construction market, quality control and material selec-tion, the article analyzes exterior leakage causes, and puts forward preventive measures including controlling exterior waterproofing design, strengthening staff ability training, and selecting standard building materials and so on, with a view to effectively solve exterior leakage diseases.%针对建筑外墙渗漏水现象严重的问题，从建筑市场、质量控制、材料选用等方面入手，分析了外墙渗漏水的原因，并提出了重视外墙防水设计，加强人员技能培训，选用合格建筑材料等防治措施，以有效解决外墙渗漏水这一质量通病。
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