Remove/Mod (Thin) Rock Roof

[kardofaces]

I have a couple that will not disappear or remove shadow. Is there any way to mod them to be removable like constructed roofs? Or a technique to remove them?

Excluding: designation for removing roof

[MrDecay]

Use the no roof zone

[kardofaces]

I should have been more clear. I have already used that.

[Mystic]

I've experienced the same problem several times ... shadowed areas on the map that I assume are roofs, except there is no associated construction.  Usually it seems to be in areas where I have mined out the entirety of a rock outcropping.  In fact on one of these occasions I got a message about "an unsupported roof collapsed", but the shadow remained on the map permanently.  I too tried applying the "No Roof Zone" to these areas, but observed no effect thereof.

[Coenmcj]

That sounds like a bug, You should probably report it in the bug forums.

although, I do suppose you could try and build a new roof where the shadows exist, build a structure around it and then promptly remove it. See if that does anything.