" P" i& W+ a. p2 D- S4 AThe 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 ' t1 f. N) c: M. W9 q* U; Uwhat happens if there is persistent condensation?( F& U y$ }% I* Z. e2 W6 s" r u
blinds and curtains are left open all the time, t ...
& _# N2 |" I C \/ X+ w% N) E3 T) egood question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.