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某建筑公司施工的住宅楼交工在即,却在顶层有些房间的天棚上发现一些潮湿的水印,大的如手掌,小的如指尖,大多沿楼板缝的方向分布。奇怪的是这些水印只是在下雨潮湿、室内不通风的情况下出现,天气晴朗时,打开窗户一通风就消失了。这样反复几次之后,甲方工程师认为屋面三毡四油防水有问题,要求蓄水检验。经过48h 蓄水检验,各水印并无扩大的迹
The construction of a residential building under construction by a construction company is nearing completion, but some moist watermarks are found in the ceilings of some rooms on the top floor. Large ones such as palms and small ones are distributed along the direction of the floor slabs. The weird thing is that these watermarks only appear when it is raining and damp and the room is not ventilated. When the weather is fine, the windows will open and the ventilation will disappear. After repeating this several times, Party A’s engineers thought that there was a problem with the waterproofing of the roof, three felts and four oils, and required the impoundment inspection. After 48h water storage inspection, each watermark has no trace of enlargement