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为使屋面基层中的多余水分不影响屋面保温效果,预防防水卷材起鼓,一般将屋面做成排汽屋面。但在实际施工中,往往因为排汽槽堵塞而得不到应有的排除水汽的效果。我们承建的南通富士美食品有限公司主厂房,屋面面积为8000米~2,水泥膨胀珍珠岩保温层平均厚度为240毫米,保温层中水分多,不易干燥,建设工期短,屋面防水采用 PVC 柔性卷材。针对这一情况,我们经过反复实践和比较,将以往一惯做法的排汽槽改成钢板网卷筒法,经过几个夏季高温暴
In order to prevent the excess moisture in the roofing of the roof from affecting the insulation effect of the roof, and prevent the waterproofing membrane from picking up the drum, the roof is generally made into the exhaust roof. However, in actual construction, the effect of water vapor elimination due to the blockage of the exhaust gas channels is not obtained. The main building of Nantong Fujimei Food Co., Ltd., which we undertook, has a roof area of 8,000 m2 and an average thickness of 240 mm for the cement-expanded perlite insulation layer. The insulation layer contains much moisture and is not easy to dry. The construction period is short, and the waterproofing of the roof is made of PVC flexible coils. material. In view of this situation, we have repeatedly practiced and compared the exhaust steam traps that were used in the past to steel mesh reeling methods, after several summer high-temperature storms.