This would have to be a pretty much perfect seal towards the ground or it would be filled with mold within a matter of weeks. The ventilation would also be a nightmare.
Building under ground is about the same as building under water if you want to make actually decent habitats. And it is absolutely a no go if there is any chance of earthquakes lest it turns into a tomb.
This would have to be a pretty much perfect seal towards the ground or it would be filled with mold within a matter of weeks. The ventilation would also be a nightmare.
Building under ground is about the same as building under water if you want to make actually decent habitats. And it is absolutely a no go if there is any chance of earthquakes lest it turns into a tomb.