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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 4 Z( ?$ V. |2 }$ a+ ?( p$ h
what happens if there is persistent condensation?* M' _2 I: ~' V: p! M
blinds and curtains are left open all the time, t ...
6 O* R3 A: r* z: g4 q( w" Qgood question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.