Add a spot slope dimension.
Revit roof slope annotation.
Then in revit you get into the view you wish to re colour probably a 3d view is apt then hit run.
Because revit is annotating the hip not the face of the roof.
For slope representation enabled in an elevation or section view select arrow or triangle.
Enter a value.
Optional change the following on the options bar.
You simply input a slope in degrees that anything greater than is problematic.
In the type selector select the type of spot slope to place.
If you press tab when dimension spot slope in elevation view and the roof is a hip roof with 15 degrees on all 4 roofsides the angel will show alternate 15 and 10 7 degrees.
Try hitting the tab key while floating over the roof edge and you ll see that the slope tag can report the slope of the hip or the face.
This depends on how you ve modelled but if you ve clicked on the defines slope you could approach it like so.
All orange floors don t comply.