Using Multiple Surfaces as One or Making Them One to Divide the Surface as I Want

 below there are screenshots of the file just to let you have a better idea about the situation. ***could not upload the .3dm file somehow**
i tried having many** sections and loft them but it failed either via rhino and grasshopper. 
i tried to make them brep did not work or i could not work. 
what i try to do is to have the similar effect on the facade of my building of the famous allianz arena of Bayern Munchen. 
since whatever i try (triangulation, division) is applied for each surface seperately i cant have THE effect. 

if you could help someone really new to such a full-of-potential program you will save my future with it as well as the project. 

thanks in advance