Plaster inner ceiling transition dormer->slanted roof

[jackass]

Hi,
I'm about to put up furring strips to later install ceiling drywall in a room. The room in question has two levels on the ceiling with a sloped ceiling between them. My question is how to best handle the joint that will form between the sloped ceiling and one of the ceilings, the "outer corner" if you know what I mean. (The inner corner can be sealed with caulk.)
I'm probably going with regular wall drywall, so the simplest might be to place two beveled edges against each other and spackle it like a regular outer corner? Or is there another suggestion?
Ideally, I would like to have the drywall placed in the other direction, i.e., the short side towards the joint and the board in the direction of the light, but I assume that would be more difficult.

 

[peternicklas]

There are reinforcements in metal for such corners. Install the gypsum as usual, reinforcement, and then spackling.

 

[jackass]

There are reinforcements in metal for such corners. Install the drywall as usual, reinforcement and then spackling.

Even for corners that are neither 90 nor 135 degrees?

 

[anders07]

http://inredningslist.se/butik/gipsytterhorn-25m/

 

[sinuslinus]

Works well with the kind of strip linked to above in cardboard/plastic that you glue with water. I bought it at the paint store.

 

[ccf]

My builders applied microlit plus filler over the joints (first they rounded the corners a bit with sandpaper, gives a softer feel in the room and hurts less if you bump your forehead on the corner ).