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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 + I4 Q. ^4 a" @4 E4 ^what happens if there is persistent condensation? * F9 h+ m! t3 @; m( ?blinds and curtains are left open all the time, t ...
3 z$ ^/ _7 L- b0 Rgood question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.