If you want to change the position of the roof use the properties palette to edit the base level and offset properties to change the position of the reference plane.
Four sided gable roof revit.
You can use slope arrows to create slopes on a roof.
The opposite arrangement to the half hipped roof.
Edit the roof sketch select the roof and click modify roofs tabmode panel edit footprint or edit profile.
Overhanging eaves forming shelter around the building are a consequence where the gable wall is in line with the other walls of the buildings that is unless the upper gable or gables is.
After creating a roof you can change its shape or overhang cut openings or align ridges.
For instructions see creating a sloped surface using a slope arrow.
On the properties palette select new sketch from the filter list.
The reference plane in the sketch indicates where the 4 sided gable roof stops.
A hybrid of hipped and gable with the gable wall at the top and hipped lower down.