Calculate energy savings of Green Facades with Honeybee

I am a student learning Grasshopper and Honeybee.
For my Thesis Project I am trying to quantify the Thermal Benefits of Green Facades.
Can someone please tell me how to make a Vertical Green Facade on Honeybee, so that I can simulate the cooling load reduction with Green Facade?

Looking forward to your responses!

[This was answered on the LB|HB forum here].