天气冷,湿度高 you have already answered your own question. It is a common phenomenon.$ L* O' Y$ w" ^0 X
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. ' f2 W4 j# x& V1 j1 W
Nobody tells us what exactly that is. A city guy can't tell us anything about that. : O! K/ V* o m( Z0 K. { ( f5 E4 n* n7 M. q4 k1 F" dThe house is good so far, so we just leave it alone.