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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 7 ]9 t$ {0 s. W O9 A
what happens if there is persistent condensation?% b3 g1 w; P$ g. a3 \4 O* o
blinds and curtains are left open all the time, t ...
9 f& |) ~8 x1 U v1 J9 e% zgood question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.