天气冷,湿度高 you have already answered your own question. It is a common phenomenon.3 J( M5 Y6 F2 O
Ask your builder, they will tell you what exactly run above and make that sound.
# l" v3 t& \: b/ EWe have 类似水滴的声音 from the beginning and been this house for 3 years. 1 Z; n0 d5 B- V; p' V! X: \& XNobody tells us what exactly that is. A city guy can't tell us anything about that. 9 B( L, v2 s6 E6 P * M! {* Z; O2 \5 n& i1 lThe house is good so far, so we just leave it alone.