听起来您的屋顶对我漏水，尤其是如果您在雨中滴下台上台面，这不太可能会导致这种情况，这是可能的，但是屋顶工不太可能能够快速识别出的问题starting up a job lead on mybuilder.com ASAP so we can better assist you otherwise we’re just speculating going off your brief description and not getting to route cause by actually seeing in the flesh.

Not to cause you any alarm or distress but my mother had similar issue and turns out she had a slow persistent leak which caused really bad damp and mould to spawn which lasted 10 years + as she didn’t know her roof was leaking wasn’t to I grown up and just happen to get into a career of roofing I realised the lead flashing was split and needed replacing lucky she didn’t have any major damage inside which was a miracle as you expect this after 10 + years if what your saying is true I’d advise getting the issue resolved quickly as mould can have serious consequences for your health in rare circumstances especially if you breath in the sores mould releases over time not to mention the longer you leave it the bigger the chances any wood work will need replacing and longer you have to wait for ceilings and walls to dry out possibly risk ceiling collapsing in extreme rare cases

希望你能分类

问候
弗兰基
BT屋顶服务

屋顶工或建筑商将很容易确定水的来源并修复。

您可以从拆开排水沟并重新命令墙壁开始

最后一句话让任何人都读，更不用说有人寻求一些专业建议了。
在不实际访问该物业的情况下，很难发表任何评论。
凝结会导致土丘，通风不良和水坑。你有通风口的双层玻璃吗？
抱歉，没有看到问题就无法真正提供帮助。