Thanks for that.
I will add the request about the folded metal profiles so we can work on that in a future update.
The other request about the automatic joining is a bit trickier though - unfortunately, there isn't any interaction between the elements. The wall and the wall cladding essentially don't 'know' that the roof and roof cladding exist, so we can't automate the join.
I will look into some ways we can make joining them manually a bit easier though - it generally gets it right simply because the wall and roof have origins in the same spot, vertically at least, but as soon as your roof isn't lined up exactly with the wall end, it becomes tricky, as you've found.
I think we should be able to put in some sort of hotspots perhaps or something like that to make it nice and easy to line things up though.
Anyway - thanks for the feedback, much appreciated!
Josh Osborne - Central Innovation
HP Zbook Studio G4 - Windows 10 Pro, Intel i7 7820HQ, 32Gb RAM, Quadro M1200