Adding reference planes for an extruded roof

Step-by-step guide

Use reference planes to position a work plane for construction line purposes. Create a sketch of the roof profile on the reference plane.

1. Open the project RF-Arch_Extrude Roofs_RVT2021.rvt. It opens in the 3D view.

2. In the Project Browser, Floor Plans section, double-click Level 1 to open the view.
3. Zoom in on the corridor between the main building and the garage.
4. In the Architecture tab > Work Plane panel, click Ref Plane.

5. Draw the reference plane across the corridor, verifying that the angle is perpendicular to the walls.

6. Select <Click to name> and enter the name “Corridor”.
7. Click Modify.
8. In the View tab > Create panel, click Section.
9. Draw a section line parallel to the reference plane.

10. Click Modify.

Now, construct the roof by extrusion:

11. In the Architecture tab > Build panel, expand Roof and click Roof by Extrusion.

12. In the Work Plane dialog box, leave the default Pick a plane option selected.
13. Click OK.

14. In the view, click the reference plane drawn earlier.
15. In the Go To View dialog box, select Section: Section 1.
16. Click Open View.

17. In the Roof Reference Level and Offset dialog box, select Level 2.
18. Click OK.

19. In the Modify | Create Extrusion Roof Profile, Work Plane panel, click Ref Plane.
20. Draw three vertical reference planes, one on each side of the walls at 1'-6" off the wall, and one in the center.

To position the center reference line exactly between the walls:

21. In the Annotate tab > Dimension panel, click Aligned.
22. Click to add the dimensions from the first wall centerline, to the reference plane, and to the second wall centerline. Click again to place the dimension.

23. Click the EQ control. The reference plane is now centered.

Draw an additional horizontal reference plane:

24. In the Modify | Create Extrusion Roof Profile tab, click Ref Plane.
25. Draw the plane just below the tops of the walls. The exact location is not important.

Now, sketch the roof profile:

26. In the Modify | Create Extrusion Roof Profile tab > Draw panel, click Line.
27. In the Options Bar, select Chain.
28. Sketch the lines using the reference planes.

29. Click Modify.
30. In the Modify | Create Extrusion Roof Profile tab > Mode panel, click Finish Edit Mode.

The new roof is created.