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单层彩钢板顶棚，现已生锈，经常漏水。如何修理才能省钱、省力、省时、保证质量？ - 工程施工 - 项目管理 - 氿上知道
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2、该屋面如果在设计使用年限之内，换掉钩钉，采用专用自攻螺栓固定，对锈蚀部位或全部进行防锈处理（除锈、修补蚀洞、防锈漆、面漆)。
3、如果面积较大，最好做一遍防水，目前普通防水材料20元/m2左右，很便宜。
（1）、纵向搭接缝： （存在于屋面因板材单位长度不够造成的搭接缝） 处理方法：采用25cm宽的屋面防水系统对板缝进行覆盖，对于老旧屋面的原 防水层，需清除。
（2）、横向搭接缝： （老旧板型的屋面及新型屋面板在边缘位置锁口不好也存在此类问题） 处理方法：采用10cm宽的防水层覆盖
（3）、屋面螺钉、紧固件: 处理方法：采用10cm×10cm宽的防水层覆盖