STC - Can't Place Room Solution

And the winner is:

Under some circumstances you cannot place a room when a roof is the room bounding element beneath your room. I can only assume this is because a roof is expected to be above a room for volumetric calculations. If you adjust the bottom of the wall to sit on the roof it will work or what we did is...

We created an opening in the roof so we could place a floor instead. Problem solved. Technically speaking it is more consistent with the construction methods for a penthouse anyway. It definitely did provide a "what the" opportunity though.

For more depth you can review Erik's blog post.

STC - Can't Place a Room

STC = "Stump the Chump"

Question: User can't place a room element within the boundaries of penthouse walls. The penthouse is sitting on a Roof Level. There is a roof above and below the walls. There is a parapet level three feet above the Roof Level. The penthouse is eight feet tall and the walls are room bounding.

So what do my readers think is wrong? Something to do with View Range, Room Bounding, Phasing, Design Options?

I'll post the answer tomorrow!