Geometry: Single story with garage

[jmaguire1]

For single story buildings with a garage and the garage gable perpendicular to the roof gable, we need to be able to clearly distinguish what's part of the garage vs. the attic. I believe the way this works is that the roof line continues so there's a slope "roof" separating the two zones, but we should take some time to verify.

Here's an example of the geometry that might cause issues: