What you can do to force it other than clicking everywhere to prioritize it is to lock them in the room.
Rimworld force roof.
Use the regular remove roof area option found in the architect zone area menu to draw an orange area above the roof you want to remove.
New designators are in the zone tab.
This means that the largest square room you can have is 10x10 internal.
For a character to gain force powers they must start with the force sensitive trait.
Once designated you can right click on each tile but it s tedious it s faster to temporarily set a zone where the roof is and restrict a constructor in it the time to.
A roof will not be fully built in a room that is more then 11 blocks between two parallel sides.
After spending time working they will discover their force powers through gaining force xp.
Well unless they re tired then they might just sleep on the ground.
As corisai said roof building is low priority.
This event only happens if something is crushed by the falling roof.
If you removed 2 entire walls and the corner between those two sides last then that roof was too far away from any other supports.
Wait for a pawn to remove it or select a constructor pawn and right click the area to instruct him to do it right away.
Enclosed areas will automatically prompt colonists to build a roof unless you apply a no roof region or if the structure is too large over 300 cells.
A roof collapses if there s no support rock wall within 6 squares of the tile.
Otherwise it s only a notification.
250 days mtb event is set for 3 5 days.
Colonists can build structures of a various materials each with different beauty flammability and hit points.
There is another designator the one with build roof in it it works like zoning expand area or remove from area and it s meant to deconstruct construct roof like you want.
All roofs must be supported by a constructed or rock wall within 6 spaces with contiguous roof sections in between itself and that wall.
Since it s likely all they can do they ll build the roof.
Maintenance required for thick roofs only maintenance is a long tick once every 2000 ticks maintenance is required after 5000 ticks 167 days after 7500 ticks collapses can occur by mtb event.
They will remove it like any other roof.
These numbers are subject to change.
1 does the roof have support.
Low level force powers can be used by both dark and light sides of the force.