Hi Jim!
No problem and of course i thank you for all your work you put into rubies and helping out here in the forum.
The Ivy Generator needs an object only as a dummy to run the ivy on sg so sometimes it's not a problem if some triangles are missing.
I also use Archicad so i think i will try an dxf > obj workaround - although right now it looks that this .obj format is kinda fragile so i dont have high hopes.
Anyways, thanks for the help everybody!