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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 / v6 M2 i2 Y2 |9 C+ _9 Twhat happens if there is persistent condensation? ; J/ S( H( X4 Bblinds and curtains are left open all the time, t ...
1 p% T5 b& A0 N! T8 B! F+ g6 j8 H: ugood question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.