1976年7月唐山地震,波及天津市,部分民房遭到破坏。在修复加固震损房屋时,为了减轻屋顶重量,提高房屋抗震能力,将大部分传统做法的各类瓦顶屋面,去掉保温隔热层,改为木望板或椽子巴砖基层上铺纸胎油毡五层做法。这种简易油毡屋顶没有保温隔热层,表面又没铺粒砂,光面油毡直接裸 The Tangshan earthquake in July 1976 affected the city of Tianjin and some of the houses were destroyed. When repairing damaged and damaged houses, in order to reduce the weight of the roof and improve the earthquake resistance of the houses, most of the roof tiles of traditional tile roofs were removed from the roof and replaced with wooden thermal insulation. The linoleum five-layer approach. This kind of simple linoleum roof has no thermal insulation layer, no surface sand, smooth linoleum directly naked