外墙渗水是目前比较常见的质量通病 ,它会影响正常的使用 ,甚至影响结构的安全及房屋的使用寿命 ,在一些浅基础、砖混结构的中小型建筑中 ,对非给排水原因引起的渗水现象 ,本人通过对它们的观察、分析 ,得出一些体会。1　外墙渗水主要有以下几种( 1 )现浇板面、墙根渗水。( 2 ) External wall seepage is the common quality of the common problem, it will affect the normal use, and even affect the safety of the structure and the life of the house, in some shallow foundation, brick and mortar structures of small and medium-sized buildings, caused by non-water supply and drainage Water seepage phenomenon, I through their observation, analysis, come to some understanding. 1 external wall seepage mainly the following (1) cast-in-place board, seepage water wall. ( 2 )