babalala001 发表于 2013-12-25 14:32 0 {% G' N& f1 X( C0 P8 W4 V7 d
同问。
/ A4 _8 v7 v {# _/ J) L% FThe 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 , @$ V$ Q( M/ q8 q
what happens if there is persistent condensation?. ]. j& P0 a( q% \5 x1 {
blinds and curtains are left open all the time, t ...
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good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.