在水泥砂浆、混凝土隔热层、找平层屋面上铺设卷材的方法有满涂封闭法、孔道排气法以及撒油法等。采用满涂封闭法施工时,要求基层必须干燥,但有时干燥有困难,工期又紧,于是,便采用了孔道排气法和撒油法,使基层中的潮气(水蒸汽)有处可跑,或均匀分布,以消除或减少油毡起鼓 The method of laying coils on the surface of the cement mortar, concrete heat insulation layer, and leveling layer roofs includes the full-coating method, tunnel exhaust method, and oil spreading method. When using the full-encapsulation method, it is required that the grass-roots level must be dry, but sometimes it is difficult to dry, and the construction period is tight. Therefore, the tunnel exhaust method and the method of spreading oil are adopted so that the moisture (steam) in the grass-roots layer can be run. , Or evenly distributed to eliminate or reduce the felt from the drum