Everyone ever calculated mine towns, homes with stone encasings. And there durability vs the afford to build them? Seeing how resilient the old cathedrals of Europa are I m sure it works with encasings, but does it work with mine or cave towns? Its like, wood concrete, bricks, stone. Stone it self isn't a good insulator, but is it worth to build an encasing?
This ofc. chances with mine towns, cause with such thick walls it always insolates.