0 U' t# A2 f* V, | d0 pThe 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 , K. r$ l7 \# {$ [. E1 H
what happens if there is persistent condensation? 0 x/ t* p5 U/ X. ?" rblinds and curtains are left open all the time, t ...
( ?4 ~+ T0 n) Q% z! C3 c& m m( [
good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.