! |+ ?5 {0 P, y" _, H$ U" _8 o" EThe 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 - o1 e* E' v! j+ m& R# O: O
what happens if there is persistent condensation?1 j1 X9 x$ b& `4 Y( l6 H2 J4 Q7 }% Z% X
blinds and curtains are left open all the time, t ...
5 G" {; J" U5 i
good question. it means your indoor humidity is too high. many reasons: cooking, air leakage, rh too high, or insulation problem around your windows.