在工业与民用建筑中,屋面构造可以分为平屋面和坡屋面两大类。由于平屋面具有设计简单,施工装配化程高度,减少空间高度,节约木材等优点,因而用途比较广泛。平屋面通常是由结构层、隔汽层、隔热层(保温层)、找平层、防水层和复面层(保护层)组成。平屋面的防水层,按照材料性质,又可分为卷材屋面、刚性屋面与蓄水屋面三种。卷材屋面的历史比较悠久。由于它取材方便,防水效果可靠,施工及 In industrial and civil buildings, roof structures can be divided into two categories: flat roofs and slope roofs. Because flat roofs have the advantages of simple design, height of construction and assembly process, reduction of space height, and saving of wood, they are widely used. The flat roof is usually composed of a structural layer, a vapor barrier layer, a heat insulation layer (insulation layer), a leveling layer, a waterproof layer, and a complex layer (protective layer). The waterproof layer of the flat roof can be divided into three kinds: coil roof, rigid roof and water storage roof according to the nature of the material. The history of coiled roofing is relatively long. Due to its convenient materials, reliable waterproof effect, construction and