天气冷,湿度高 you have already answered your own question. It is a common phenomenon.4 W6 W5 `% e* z
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. ; W* z' @* x( W+ P g/ TNobody tells us what exactly that is. A city guy can't tell us anything about that. ; t8 H) e4 W3 e; O# v& H+ f - b6 f3 l4 E1 V l' v, y5 B" G9 y$ JThe house is good so far, so we just leave it alone.