Abstract：
Water leakage is a hard problem in the construction industry. After abundant engineering practices and researches, it is proposed that waterproof treatment shall be carried out according to the waterproof engineering characteristics and reasons for water leakage, and the objective laws during construction shall be observed. Some engineering practices about waterproofing in indoor washroom, bath room and basement are cited to explain that construction procedure, construction condition and protection of finished product are three important elements to guarantee the construction quality of waterproof engineering.
