Elliptical sloped roof in Revit

[Anonymous]

Hi, I'm using Revit 2014 Student version and have problem with creating elliptical roof. If I wanted it to be flat, it wouldn't be a problem. But I need it to be lower near the center of ellipse and higher at outer edge of this elliptical "ring". As you probably know, this "ring" doesn't have constant witdh, as it's elliptical. So I can't just define 30 degrees slope, because height at outer edge would be diffrent in every part. See attachments to understand me.

[Paul_F_Aubin]

Does the Student version have the "Shape Editing" tools? Click your flat roof, then on the ribbon look to see if the shape editing panel appears. If so, try putting a single point at the center of the ellipse. Then on the same panel, click the Modify Sub Elements tool and give this point a height; probably a negative number if I understand what you described. I think that should do the trick.