Rimworld Mining Roof

So this took out 4 people.

Rimworld mining roof.

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. A roof will collapse if the last supporting wall or rock is removed whether by mining deconstruction or destruction. Although this time is the same for all materials the amount per cycle varies. So if you mine a roof that has already collapsed it re collapses and kills you immediately.

When i say add in i meant not dig that area though you can add in the supports stone or metal before the hole reaches critical size. A roof collapses if there s no support rock wall within 6 squares of the tile. Any square 9 x 9 or bigger should have 1 support right in the middle. For some reason the regular rock areas collapsed as i was mining them.

Roof collapses cause injuries to colonists and damage items. You can avoid a collapse by either not mining the whole thing or building a wall to support it. What can i do about this. You didn t mine out a mountain you mined out a hill.

If it s an overhead mountain collapsing colonists will be buried alive. For example plasteel yields 7 units per cycle making it effectively 5 times slower to mine than steel which yields 35. Drawing a remove roof zone will cause colonists to remove a. Each extraction cycle takes a base of 14 000 ticks 3 89 mins of work to finish modified according to the colonist s mining speed stat.