Energy Performance of uPVC System Louver, ELIV
A.Summer-Louver Blades Open
Cooling Energy
![energy_performance_01](http://www.greenbautek.com/wp-content/uploads/2015/07/energy_performance_01.jpg)
Energy Performance of Louver(Blind)
in Residential Buildings
(Source: Journal of the Korean Solar Energy Society)
B.Winter-Louver Blades Closed
Heatimg Energy Cost
![energy_performance_02](http://www.greenbautek.com/wp-content/uploads/2015/07/energy_performance_02.jpg)
Energy Performance of Louver Materials
(Source: KCC Research & Development Center,South Korea)