Facade Surface Thickness

So I am working on a small idea for a tower facade and have pieced together a script primarily on trial and error and some experience. I am having a little trouble trying to give the resulted surface thickness. Attached is the Rhino file as well as my script that I have been working with, what the script does is create a twisted tower, with floors, taking the facade face and arranging it in a hexagon grid that grows and shrinks in relation to the attractor points, and lofting the original with the scaled one to make the morphing facade members. There are a few things about the facade, that may not be right, such as each face having different scaling when it should be consistent all the way around but one step at a time.

Any help would be much appreciated, thanks