天气冷,湿度高 you have already answered your own question. It is a common phenomenon.! m8 O6 k4 c V$ a- J3 C
Ask your builder, they will tell you what exactly run above and make that sound.
; x% x) Z1 t( S* CWe have 类似水滴的声音 from the beginning and been this house for 3 years. * F+ q, ^8 \2 L% [! ?' W* W, DNobody tells us what exactly that is. A city guy can't tell us anything about that.1 Q' |* T; E3 \( E
- Y0 _; j. I8 y3 VThe house is good so far, so we just leave it alone.