BIM Q&A: Why Must All Slope Arrow Tails Be Placed on the Roof Boundary in Revit?

BIM Q&A | What Does It Mean That the Tail of All Slope Arrows Must Be Located on the Roof Boundary in Revit?

In Revit roof design, the tail of the slope arrow—the single point at one end of the arrow line—must be positioned precisely on the boundary of the roof. The arrow’s head is defined as the intersection where its three lines meet. This placement rule is essential when creating sloped roofs to ensure accurate roof geometry and slope direction.

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