Bugged house wall tile piece..
in Bugs
It's a corner piece part of some a Tokuno wall set.. Tried using it on a roof..
The only problem is, it didn't let me place it.. 
It should look like this.. 
I can place it anywhere else however.. Just not in the corner, so I am left with a gap, I have to use a different piece or different type of wall..
it goes with these walls