天气冷,湿度高 you have already answered your own question. It is a common phenomenon.) n& H/ F4 q; z9 t: `
Ask your builder, they will tell you what exactly run above and make that sound.
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We have 类似水滴的声音 from the beginning and been this house for 3 years. 8 A" I' D' t: u/ bNobody tells us what exactly that is. A city guy can't tell us anything about that. S7 Y3 M& E: `9 T g$ \- m) `0 ]
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The house is good so far, so we just leave it alone.