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寿县合兴钢结构浅谈钢结构屋面形成漏水现象的原因

发布时间:2015-12-5 9:57:09 浏览次数:634

1、彩钢板搭接处漏水。水平搭接缝和竖向搭接缝,彩钢板搭接处漏水,若遇见彩钢板瓦波过低或者雨水量大没过瓦波时,容易形成大面积漏水,且不易发觉漏水点,一旦形成不易检修。多见于弧形屋面。其原因主要是两张板之间搭接不紧、自攻丝没有打满形成了空隙等等


2、屋脊瓦漏水。在轻型钢结构屋面施工中,由屋脊瓦引起的漏水也是一种较为常见的现象。在雨季,尤其是雨水量大时,雨水的飞溅通过脊瓦下部两张彩钢板对接处缝隙,形成大面积渗漏。


对防止脊瓦漏雨,在施工中宜采用加大脊瓦翻边长度,逢瓦波部位剪口,接缝处打胶。


3、屋面螺钉和紧固件处漏水。这种现象较为普遍,主要出现于双层彩钢板及单层彩钢板屋面。在施工过程中,攻丝力量过重、过轻,自螺丝打偏、打斜等,都可能使自攻丝橡胶垫片变形、脱落或者形成凹面,造成屋面点滴漏水并通过保温棉聚积,积少成多,形成多点漏水。另外,自攻丝位置不正,错过彩钢板下的檩条而直接形成孔洞也是引起漏水的重要原因之一。这种漏水现象在单层彩钢板不设保温系统的屋面结构中可能不太明显,主要是因为雨水通过钢板与檩条接触的部位渗漏后直接分散,不一定迅速滴落。


1, the color of the steel plate overlap. Level lap seam and vertical lap seam, color steel plate joint leakage, if meet color steel plate wappo is too low or the rain water has never been wappo, easy to form large leakage and is not easy to find the leakage point, once the formation is not easy to repair. More common in curved roof. The main reason is that between two sheets of plate is not tight, no self tapping played form gap etc.


2, roof tile Water Leakage. In the light steel structure roofing construction, caused by roof tile Water Leakage is also a common phenomenon. In the rainy season, especially large amount of rain, the rain splash through the lower part of the ridge tile two color steel plate butt gap, forming large area leakage.


To prevent tile leaks, in construction should be used to increase the length of every parts of wappo tile flanging, cutting, gluing joint.


3, roofing screws and fasteners Department leakage. This phenomenon is more common, mainly appeared in double color steel plate and single color steel sheet roof. In the construction process, tapping power is overweight, light, since screws Dapian, beveling, may make self tapping rubber gasket distortion, loss or a concave, cause of roof drip leak and the heat insulation cotton accumulation, many a little makes a mickle, the formation of leakage. Also self tapping position, Miss Choi steel purlin directly to form holes is caused by leakage is one of the important reasons. The leakage phenomenon in single color plate not insulation roof structure of the system may not be obvious, mainly because of rainwater through the contact plate and purlin leakage location directly dispersed, not necessarily rapidly dropping.


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