钢结构厂房漏水与哪些施工因素有关

发布时间:2019-09-16

钢结构厂房漏水与哪些施工因素有关

2026-03-04 9 次阅读 0 条评论
钢结构厂房漏水与哪些施工因素有关
发布时间:2019-09-16
钢结构厂房工程施工是一个时间相对比较长的过程,这个过程所包含的施工工序是很多的,所以可能出现的问题也有很多,由于施工因素导致钢结构厂房发生漏水的可能性也是很大的,那么钢结构厂房漏水与哪些施工因素有关? 1、施工过程中对屋面围护不注意保护,随意踩踏屋面,破坏了屋面的平整度,甚至出现裂纹,密封胶量不足,位置不正确,打拉铆钉过多,并且未进行防水处理。
2、天沟不进行防腐,有些施工单位在进行天沟防腐时,只是刷防锈漆或者沥青漆,使用一段时间后,天沟腐蚀严重。 3、钢结构厂房屋面板,因跨度过大,屋面板存在搭接,虽然在搭接等处采用了聚氨酯密封胶和缝合钉等处理,但安装时往往很难达到设计理论标准,导致漏雨。 4、天沟横向没有坡度,制作时至少应留0.5%的坡度。 5、关键节点部位施工马虎。女儿墙等根部阴角没有按规定作成圆弧或圆弧太小,卷材端边收头密封不严,上口白铁皮变形,固定点稀少加之密封材料封口不好,伸出屋面的管道根部堵洞不严,管道四周找平层没有高出附近找平层,防水层泛水高度不够。保温层施工遇雨,排气槽堵塞,排气孔设置不合理,造成保温层长期浸水。刚性屋面产生裂缝,分割缝处防水密封膏与缝侧壁粘结不牢而渗水。

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