The tail of the slope arrow must be on one of the sketched lines that defines the boundary.
Revit roof slope arrow annotation.
How to set up the dimension for roof slope in degree products and versions covered revit 2015 revit 2016 revit 2017 revit architecture 2015 revit architecture 2016 revit lt 2015 revit lt 2016 revit lt 2017 revit mep 2015 revit mep 2016 revit structure 2015 revit structure 2016.
When you draw a slope arrow you can enter property values to specify the height at its head and tail or a slope value.
Click annotate tab dimension panel spot slope.
For slope representation enabled in an elevation or section view select arrow or triangle.
Revit snaps to the cornerpitch of the roof.
In the type selector select the type of spot slope to place.
Optional change the following on the options bar.
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.
This create an uni directional slope parallel to the arrow.
Enter a value for offset from reference.
The tail is the low point and the head is the high point.
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.
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.
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.