Conduction through aluminum is literally "broken" by this barrier, turning aluminum (usually a good material for transferring heat and cold) into a good insulator, which increases the window's overall energy efficiency.
(Conduction through aluminum; is literally broken; by this barrier; turning aluminum (usually a good material for transferring heat and cold) into a good insulator) (a good insulator; increases; the window's overall energy efficiency)
Conduction through aluminum a good insulator
is literally broken increases
by this barrier turning aluminum (usually a good material for transferring heat and cold) into a good insulator
the window's overall energy efficiency