A.120mm B.240mm C.180mm D.60mm
A.120mm B.200mm C.240mm D.360mm
A.散水常用砼、砂漿等不透水的材料做面層 B.散水的寬度一般為600—800mm C.散水表面應(yīng)向外傾斜,坡度一般為3—5% D.當屋面采用無組織排水方式時,散水寬度應(yīng)比屋檐的挑出寬度大200mm