Taking a practical engineering case of an inverted roof in the cold winter region of northern China as the research object,this paper focuses on various reasons for the leakage problem of inverted roofs,the technical points of maintenance and construction plans,and quality control measures.Partial excavation is carried out on the original leaking roof to remove the accumulated water in the structural layer,and a double-layer exhaust pipe system is added.Finally,a combined waterproofing layer of 4 mm thick SBS modified bitumen waterproofing membrane and a 1.5 mm thick non-solidified rubber asphalt coating is installed as a whole.The repair effect of the roof is good.
关键词
北方冬冷地区/倒置式屋面/渗漏原因/维修方案/双层排汽管/泡沫混凝土
Key words
cold winter regions in the north/inverted roof/leakage cause/maintenance plan/double layer exhaust pipe/cellular concrete