Overhead mountain is what you want for insulation.
Rimworld constructed roof vs mountain.
This works for any map size.
I provides a method to visually change between constructed thin rock overhead mountain or no roof on any of the map tiles in your game.
Allows you to edit the roof type on any tile in a rimworld savegame.
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Areas can be designated to have a roof or not have a roof by drawing either a build roof area or remove roof area.
It ll only take 5 resources to build since roofs don t cost anything and it ll be a good enough starter storage.
Thin rock roof and constructed roof are exactly the same.
Colonists will be able to remove overhead mountain.
You can also only lose heat through it rather than gain it so they make for efficient freezers.
Rimworld savegame roof type editor.
You can add a couple of walls on the corners to make it safer from roof collapse.
Indoor roofs are automatically built by builders.
Keep in mind that tiles mined out under a thick mountain roof can cause infestations to spawn too.
Rock roof mod is a simple mod just to patch core.
The same 6 tile roof rule works for constructed roofs as well and you can also use the bounded roof mod to make sure you don t accidentally build a roof that will collapse.
A quick and cheap structure to store materials and food can be made with a 9x9 roof and a wooden or steel wall in the middle.
To build a roof outdoors a build roof area must first be drawn.
Mountains provide overhead mountain roofs that are impregnable to mortar fire so dig in deep enough and you won t have half your base turned to scrap metal by mortar fire during the next siege.
Orange overhead mountain yellow thin rock roof cyan constructed roof blue constructed steel roof teal constructed solar roof pink constructed transparent roof purple constructed transparent solar roof areabuildroof and arearemoveroof area zones.
Only tested with rimworld 0 16 at the moment.
Shells fired from mortars or drop pods will break through constructed roofing but not through overhead mountains or any tile underneath one.
Mountains or hills in rimworld are a natural structure that contain resources and special rooms.
It has an effective outside temperature of 15c regardless of the environmental temperature.