GECO ANALYSIS PROBLEM

Hi,

I am a beginner in grasshopper and i would like to do an insulation analysis on my main facade. Actually i have already did this in Ecotect, but i would like to generate something in grasshopper according to this analysis. My problem is that when i tried to do the same analysis as the ecotect one with Geco, it is not precise at all. I really need to have something similar as my ecotect analysis to start working on my facade form.

Can someone helps me please?