屋脊处波峰太高,屋脊盖板无法保证防水;纵向搭接不放胶泥或硅胶,形成缝隙而漏水;屋脊盖板纵向搭接用铆钉连接,热胀冷缩强度不够而拉断铆钉,形成漏水;活动板房屋脊盖板与屋面板之间不敷设堵头,或堵头放置不规范而脱落形成漏水。屋脊盖板做宽些,另外坡度找大点;搭接处敷设胶泥或硅胶;更换缝合钉;堵头应与板型板匹配,堵头敷设时应上下放胶泥或硅胶。适当加大天沟深度,让天沟雨水不超过搭接缝;内天沟接头焊接后做防水试验,若发现漏水,需进行二次焊接;天沟和雨水管设计管径大小应通过计算屋面排水量确定;安装天沟端部封头板;屋面板须按设计长度施工。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6d81800a19d8bc3e040cde14898ba61ea9d345ec?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)