Based on the survey of some waterproof works using building water-repellent powder,the paper sums up the successful experience,analyses the reason for roofing leakage and makes some suggestions.

• 本文在建筑拒水粉屋面防水工程实地调查的基础上,根据调查的数据和实例,总结了成功的经验,分析了造成渗漏的原因,提出了改进的意见