天气冷,湿度高 you have already answered your own question. It is a common phenomenon.; g. Y& m' b/ P
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. * W0 {8 w p( }Nobody tells us what exactly that is. A city guy can't tell us anything about that.3 q+ a( |3 \& U: M& x# T
1 t" r% w; X% CThe house is good so far, so we just leave it alone.