Don t remove entire walls if they re the only thing holding up a roof.
How do you remove a roof in rimworld.
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.
In some places you can not remove the thick roof.
You cannot remove overhead mountain roofs.
Only way i have seen is in dev mode or by removing the walls below it even the rock walls and it will fall down on top of the ground below.
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Sep 13 2017 11 49am guys this is from 2016.
You can only give it to fall.
Leave some walls from the edge and take away it gently so that the colonist is not filled up.
So i try to remove the mountain roofs so they don t collapse by declareing a no roof area but on some tiles it will never be possible to declare that area and if i let the roof collapse and remove the debris it just collapses again presumably forever since i tried removing it 15 times and it still collapsed.
Are you sure you are using the remove roof zone and not just removing the build roof zone there are 4 roof buttons in total.
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.
You have to leave the walls to prevent the roof fall.
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.
I think the second approach will let you force a colonists to remove a roof section but i don t think it will generate any tasks to do so automatically.
The no roof zone will remove constructed and thin rock roofs from the selected tiles.