Hi, I'm new (sorry!) and I am trying to just build a rectangular house with a hip roof and the 2nd floor be completely under the hip roof. Everytime I tell it to build roof it either doesn't build a roof at all over the 2nd floor (so there is just a square cut out of the top of the roof.) Or I have somehow gotten it to put a roof on the 2nd floor, but it's completely not connected with the first floor roof at all. I know it's something that has to be silly and simple, but I have read and read and read and I cannot find anything about this! I'm going nuts! I'd appreciate anyone that tell me what I need to check/uncheck/ etc. Thank you very very much.