So I bought a house that had alot of wasted space. I tore off the roof and went up. The old peak was about five feet. Now the peak is at 12 and the flat of the ceiling is at 10.5 feet. We are coming to the end of this large project..and the last thing is the floor. THe floor dips/sags in one general area. It is about an inch or more for about the 24 ft span..while we were doing the initial demo..A contractor checked for any issues and looked into why there was floor sag. It was because when the origional owner tore down walls on the first floor they didnt support them properly..Now they are supported..but because nobody( except me and my wife) saw the potential of the attic the floor isnt an issue..Any ideas on how to level the floor..without running studs over the current floor and putting on a second sub-floor..