babalala001 发表于 2013-12-25 14:32 ! M v) S; F; P& x! j) Y
同问。
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The window covering does not increase any insulating R-value, but prevent indoor air movement. Condensation is the major problem.
DevenC 发表于 2013-12-26 12:49 " w5 r' S, L2 j& iwhat happens if there is persistent condensation? 1 ]+ u! T2 y1 K. Y0 C2 \blinds and curtains are left open all the time, t ...
3 B# Z% d/ L* v. w8 e+ ~good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.