How to get wall layers to extend above ceiling finish

[Bergie3941]

I have a project where a corridor has a dropped ceiling, but the hard ceiling and wall drywall is the fire-rated layer.  This needs to be continuous up the wall and across the hard ceiling.  The drop ceiling is framed in after the fact.  When I use a ceiling plane or the ceiling finish to add layers for the drop ceiling, the wall drywall stops at the ceiling finish, not extending above to the hard ceiling above.  The attached image shows the scenario. The yellow and orange are all part of the ceiling finish, but the orange is the dropped portion.  I need the green wall layer to extend up to the yellow.  I'd like it to be a ceiling surface for ease of placing light fixtures and other ceiling items. Any ideas on how to accomplish this?

[robdyck]

You could turn your walls into pony walls using the same wall type top & bottom, with the wall split elevation set to match the ceiling elevation. Maybe not ideal but it seems to work for me.

 

[Bergie3941]

Thanks, Robert, that worked for me. A little bit of a pain, but I'm not sure there's a better solution.  Much appreciated!

[JiAngelo]

OPTION 1 - Use a 3/4" slab w/ a 1/2" footing at drop ceiling height and use "rectangle ceiling tiles" for materials.

You can specify ceiling lights a set distance from the room ceiling to be in the drop panels.

In plan view you can specify your 2x4 or 4x2 grid pattern and offset it accordingly so that it looks correct on the plans (for locating lighting and hvac vents.)

However you have no control over the grid pattern in camera view.

 

OPTION 2 - Same 3/4" slab no footer at drop ceiling height, .  Use a stucco texture color eggshell in Cat Face, Dash, or Lace.  (This gives you a ceiling panel look.)

Then add  1" x 1-1/4" molding lines in a running 2' x 4' plus 1 continuous molding line around the perimeter of the room (all 1/2" below drop ceiling surface.)

 

 

Now you can see your entire ceiling grid if you turn the slab off.

 

Isolate the drop ceiling molding lines and slab to their own layers and you won't affect the rest of your drawing turning these layers on/off. 

Here's the plan view.

 

And here's another bathroom with a drop ceiling from a project I helped model with another chief user. 

 

Slab and molding lines can be broken and adjusted to match/follow any room's shape.

 

[GeneDavis]

You cannot use a ceiling plane for this, or the ceiling definition with an airgap material spacer, because they stop the sheetrock at the wall intersect and delete it from the structural ceiling above.  Here is a pic showing a ceiling plane doing its thing (not wanted) and a solid painted "drywall" beyond which behaves OK for your need.  You can manually frame above it and place recessed lighting, manually locating the light elevations as needed.  Recessed lights don't cut drywall (I've suggested they do for better photorealism), Chief models them as paste-ons.