If the damp is above the floor boards it's a indicator that the damps rising above dpc or something is bridging the cavity which means external rain/ water is passing through the external brickwork to the cavity and travelling across a foreign object bridging the cavity which is touching the internal skin which will cause damp or another case is that the ground outside is not forcing rain and water away from the property which then would cause the ingress of moisture and damp or lastly, the property has had a company to fulfil the cavity which causes damp as there's no air flow!
希望这有帮助, 需要更多帮助时可以畅通消息或通话,

猜想我可以说排水u陷阱冷冻或阻塞不放水通与逆天气我们有

下方150毫米潮湿

如果不是问题,我会检查房顶 它没有漏入洞口

希望那有帮助

丹市

不看问题楼 完全不可能说到底发生了什么 我唯一能说的 就是它绝对不上升潮湿
发布作业网站并找本地专家轮评因果
个人从房顶向下工作, 可能缺乏隔热性隔热性断裂房瓦、断裂或破碎脊柱/芯片, 举几例潜在原因

好运亚历克斯

上头发现一些潮湿上升案例 是由地下下水管道漏入引起的推荐排水闭路检查排除谢谢