. l7 s) k4 O E5 P! ~& g+ `% {7 ?+ p0 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 " i, z1 l2 Y7 o# Z2 y1 Z2 j; O
what happens if there is persistent condensation?% c1 s! c3 q% N+ v
blinds and curtains are left open all the time, t ...
$ S5 |7 Z5 s* T& W
good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.