Now the trick is select and name the ref.
Revit roof reference plane.
First of all create a reference plane in desired position and if you like lock it to the roof plane this way if you raise the roof the purlins etc.
Name reference planes name each reference plane so you can assign it to be the current work plane.
Plane if you don t none of this works.
In the drawing area draw the reference planes by dragging the cursor.
Used in this way they are acting as simple construction lines.
In the drawing area select the arc line.
For example i may lay out the perimeter of my building and then align and lock walls floors ceilings and roofs even area boundaries on those reference planes.
Click architecture tab work plane panel ref plane.
On the draw panel click pick lines.
Simply they can be used to form a draft outline of where you need to position certain elements.
Revit places a reference plane at the specified offset.
In revit reference planes can be used for two main purposes.
In the drawing area sketch.
Usually when i create a model in revit not necessarily a family i use reference planes as guides to constrain all other elements on them.
To pick an existing line.
Hide the reference plane in the view hide a selected reference plane or all reference planes in.
In the drawing area sketch a reference plane that is not perpendicular to the roof ridges.
Click architecture tab work plane panel ref plane.
Reference planes add a reference plane use the line tool or the pick line tool to draw a reference plane.
Using the reference plane you can control the position of the extruded roof in relation to a level.
Will go with it.
Click finish edit mode and then open a 3d view.
If you specify zero segments the default a.
Align roof ridges in a plan view add a reference plane.
Click modify to end the line.