Reason 1: I'll be able to make a larger roofs and alternate roof elements with fewer tiles.
Reason 2: It works better with the way autotile is set up in Ace. (Which, by the way, is stupid.)
Reason 3: I want to figure out how to do it correctly. Just putting the back on is easier. I'd like to find out why it works in games like FF6 or Breath of Fire 2, but looks flat when I do it.
It doesn't have to be at a side view to get an angle where you can only see the front half of the roof, the angle that I'm trying for is about 60 degrees. And, as I said before, the games where I've seen it done well are all RPGs with a top down perspective. Anyway, I'm not changing my mind about not showing the other side of the roof.
Since the well didn't look as out of perspective as the house did I figured the problem might be the slanted sides. I did a quick attempt at a fix, it's obviously unfinished.