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多年来,卷材屋面铺设的方向规定当坡度在3%以内时,宜平行于屋脊铺设;在3～15%坡度时,卷材可垂直或平行于屋脊铺设。一般认为采用平行于屋脊方向铺设卷材的好处是:1.每幅卷材可铺设到底,能减少卷材的接头损失:2.工作面大,提高施工速度;3.卷材的全长与屋脊平行时,卷材的大部分搭接缝,都是与屋面坡度的流水方向相互垂直,这样不易漏水。这些说法好象很有道理。但是如果您有兴趣的话,可以认真调查几栋
For many years, the direction of the laying of roofing materials for coils has been determined to be parallel to the ridges when the slope is within 3%; when the slope is 3 to 15%, the coils can be laid vertically or parallel to the ridges. It is generally considered that the advantage of laying coils in a direction parallel to the ridgeline is: 1. Each coil can be laid in the end, which can reduce the joint loss of the coils: 2. The work surface is large and the construction speed is increased; 3. The total length of the coil is When the ridges are parallel, most of the lap joints of the coils are perpendicular to the flow direction of the roof slope, so that it is not easy to leak water. These arguments seem very reasonable. But if you are interested, you can seriously investigate several buildings