天气冷,湿度高 you have already answered your own question. It is a common phenomenon. % X R& P6 B+ ^Ask your builder, they will tell you what exactly run above and make that sound.
: M& v. Y* Q/ @1 T: Y% s9 m$ SWe have 类似水滴的声音 from the beginning and been this house for 3 years. # J" `# O- ]" Y" C; V$ M# U! B- W8 |9 zNobody tells us what exactly that is. A city guy can't tell us anything about that.8 e- y; o. K+ I1 Q6 N
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The house is good so far, so we just leave it alone.