屋面工程是房屋建筑的一项重要工程,其质量的好坏不仅关系到建筑物的使用寿命,而且直接影响工业生产及人民生活。近年来,随着新型防水材料的发展,出现了许多新型防水屋面。沥青油毡屋面的数量正在逐年下降,刚性双防水屋面、冷粘贴卷材屋面、冷涂料防水屋面等新型防水屋面的比例正在逐年增加。以北京市六建公司为例,1983年以前防水基本上都用沥青油毡,而从1984年之后应用新型防水材料逐年增 Roofing is an important project of building construction. Its quality is not only related to the service life of buildings, but also directly affects industrial production and people’s lives. In recent years, with the development of new waterproof materials, many new types of waterproof roofs have emerged. The number of bitumen linoleum roofs is declining year by year. The proportion of new waterproof roofs such as rigid double waterproof roofs, cold glued coil roofs and cold paint waterproof roofs is increasing year by year. Take Beijing Liujian Company as an example. Waterproofing basically used bitumen linoleum before 1983, and since 1984 new waterproof material has been applied year by year.