Not All Tiles are Equal (In Search Of Studless Models - Part 2)

Initially I looked at trying to use 1x1 sloping roof tiles to place on each available stud but the problem with these parts is that they are not 1 plate width high, so not only do you need to identify available studs but you also need to know the gap distance between the stud and any parts above the stud.  In the little animation below it looks like I got lucky, but if you look carefully, there is an intersection in the model!

Another couple of intersections are more obvious in the model below.

In fact I've yet to solve this problem, so for now sloping roof tiles could only be used on the top of a model!