天气冷,湿度高 you have already answered your own question. It is a common phenomenon.( _4 X, |1 Z6 _
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. 5 l7 m+ q7 j& p
Nobody tells us what exactly that is. A city guy can't tell us anything about that. 3 v8 X" H7 N7 _) j# O! f# [( @ " L c. I- ?9 A f5 X/ t" t) g( ?' r6 RThe house is good so far, so we just leave it alone.