Kinda getting sick and tired of these poorly thought out Illigitimate and Arbitrary build restrictions that serve no gameplay purpose other to annoy people and restrict creativity.
Is there a roof Yes.
Can I see why a dev might have decided to add this restriction sort of.
But in practice this kind of thing really does not belong in a game that doesn't have or need a tie to realism and all it does is restrict player creativity in how they build their base. Same with the requiring a roof. Just get rid of all of them altogether nothing will change nothing of value will be lost as these mechanics add nothing to the game. but as of removing them people will be more free to come up with interesting builds