Revit Roof Slope Arrow Annotation

I have created a roof cricket family and am finding discrepancies with revit s spot slope tool when the crickets are placed on a sloped roof host.

Revit roof slope arrow annotation.

Ceilings for example to create a flat sloping roof draw a slope arrow from the lower edge to the upper edge of the roof boundary. I think this may be how revit is calculating the slope with respect the host surface but i can t wrap my brain around it. In the type selector select the type of spot slope to place. The tail of the slope arrow must be on one of the sketched lines that defines the boundary.

Enter a value for offset from reference. For slope representation enabled in an elevation or section view select arrow or triangle. When you draw a slope arrow you can enter property values to specify the height at its head and tail or a slope value. Optional change the following on the options bar.

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. The tail is the low point and the head is the high point. This create an uni directional slope parallel to the arrow. Revit snaps to the cornerpitch of the roof.

Also for the life of me i can t figure out how to nest a simple arrow annotation that i wan t to use to indicate the slope. Click annotate tab dimension panel spot slope.