天气冷,湿度高 you have already answered your own question. It is a common phenomenon./ ]7 T6 E- b& b7 a
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. 1 i$ I6 K& z" j+ S; l
Nobody tells us what exactly that is. A city guy can't tell us anything about that. / L) S6 f3 m3 E: T& w$ b7 _' _" ^2 A: K+ w
The house is good so far, so we just leave it alone.