1 ^0 n% Z8 d& e0 V) n# fThe 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& L( `4 W! U. Q$ u5 lwhat happens if there is persistent condensation? , ]% F% R- X" s& Dblinds and curtains are left open all the time, t ...
3 Y# z: ?- C) \8 D6 @) X8 \good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.