Different wall heights on each side of furnished attic

[meanwhile]

Hello! The left side wall of this attic bedroom is 10" higher than the right one in real life. How do I model this?

 

The length of the room is accurate, although I believe the peak/ridge of the roof is at least 5" taller (couldn't get a clean measurement).

 

The first floor ceiling heights are accurate, but the roof baseline height is somehow taller on the exterior.

 

Thanks!

Edited 21 hours ago by meanwhile

[JiAngelo]

Create a room in that attic space that is 1" tall, no flat ceiling.  That should raise the left attic wall and raise the lower rafter soffit.

Edited 19 hours ago by JiAngelo

[GeneDavis]

Raise the larger roof plane 10 inches?  Those rafters likely bear on a plate atop the floor frame.

[meanwhile]

Thanks for the tips! The 1" tall attic space room sadly caused some weird problems with split height roof planes.

 

I'm quite stumped, so here's a stripped down copy of the plan, as well as a couple of images below showing that +10″ taller wall from both sides of it.

 

Another possible missing piece of the puzzle – that side of the room seems to have a 42º ceiling pitch, rather than 45º on the other side.

 

It's a tricky one! You'll see a small corner overhang "patio" in the model that complicates it as well.

 

Would really appreciate any help on cracking this one.

 

Edited 6 hours ago by meanwhile