外墙渗水是上海地区砖墙多层(7层以下)房屋较为常见的质量通病。渗水致使内墙面霉变、起壳、脱落,造成一定的经济损失甚至纠纷,危害用户。几年来国家制定了新的规范,有关部门也作出了相应规定,并采取了许多措施,虽取得一些成效但却无法根治。为根治渗水通病,笔者结合工程实践,与施工单位等一起做了试验研究工作,取得了一些进 External wall seepage is a common common problem in Shanghai’s brick walls (below 7 floors). The seepage of water causes the interior walls to become mildewed, shelled, and shed, resulting in certain economic losses and even disputes that endanger users. Over the past few years, the country has formulated new regulations, and the relevant departments have also made corresponding regulations and adopted many measures. Although they have achieved some results, they have not been eradicated. In order to cure water seepage problems, the author has done experimental research work together with the construction unit etc. in combination with engineering practice and achieved some progress.