Originally posted by fossalex09:

I am building a 15x18 2 story house. and I am having issues with the roof falling. I am in the "Bronze age" (havent killed the second boss yet) and I am using Core logs (the second try of wood posts) to help build my house. but as i get 2 to 3 layers of roof up it starts to fall. Any Ideas?
I have repaired my lower parts (all of them), I have flatten the earth that I am building this house on to the point it is completely even and that the base floor is supported on the dirt.

Your floor is supported by dirt but what about your posts? If they're supported by the floor, that's not as stable. Make sure the posts are also supported by the ground (shaded blue.)

It gets a lot easier once you have access to iron or stone.