外墙水管安装:安装雨水管随外沿抹灰架子由上往下进行,先在水落口处吊线坠弹出雨水管沿墙的位置线,根据雨水管每节长度,预量出定卡位置,间距一般为1200mm,设在下面一节管的上端,卧卡子用水泥砂浆固定,不得打入木塞固定和固定在木塞上。雨水管若遇建筑凹凸时,应以钝角折弯连通,并在抗弯处加卡固定。
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