macaroknee

Hi, i'm using x5 and trying to build a 1 story house with a bonus room in the attic. I have 9 and 10 foot celings. When i build the roof, then i build the 2nd story, all the ceiling on the 1st floor changed to default 9'.i changed the celing below to 10 foot and all the ceilings on the 1st floor changed to 10'. i would like to keep my 1st floor celing as is. Any help would be greatful. Ty, David 500.zip