Ceiling Planes

Ceiling planes are similar to roof planes. They are drawn the same way and edited using the same tools. They are useful for creating custom sloped ceilings.

To draw a ceiling plane

Open the Build Roof dialog and reset the Pitch using a shallower angle. A newly drawn ceiling plane takes its initial pitch from this setting.

Select Build> Roof> Ceiling Plane

Click and drag along the baseline.

Click upslope to place the ceiling plane.

The baseline of a ceiling plane should be drawn along and directly on top of the outer surface of the wall main layer. This allows the ceiling plane to extend over and be supported by the wall.

The sloping edge at the side of a ceiling plane should butt to the inside of the wall.

Ceiling planes act independent of the roof planes above.

Normally the pitch of a ceiling plane should be lower than the pitch of the corresponding roof plane.

Ceiling planes can be joined together using the Join Roof Planes

edit button.

Ceiling planes should be created over rooms that have Ceiling Over this Room unchecked in the Room Specification dialog. If this is unchecked, ceiling planes must be present in order to build roof trusses in this area.

Ceiling planes can be curved, just like roof planes. See "Curved Roof Planes".

Select a ceiling plane and click the Open Object

edit button to access the Ceiling Plane Specification dialog. See "Ceiling Plane Specification Dialog".

Displaying Ceiling Planes

Ceiling planes have their own layer in the Layer Display Options dialog. The display settings can be set here by layer. The ceiling planes layer can also be locked to prevent editing. See "Displaying Objects".

Deleting Ceiling Planes

Select Build> Roof> Delete Ceiling Planes to delete all ceiling planes in the current plan.