. c% H* x# X# N4 W' ~* qThe 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 ) o4 ?" y$ H4 h# D* g Z; o
what happens if there is persistent condensation?& t, h6 q7 L% q5 N! v# x2 O- d
blinds and curtains are left open all the time, t ...
' M# `0 w+ I& R7 Z* b
good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.