Revit places a reference plane at the specified offset.
Revit roof reference plane.
Alternatively they can actually be used to control the formation and position of 3d geometry.
Hide the reference plane in the view hide a selected reference plane or all reference planes in.
Now the trick is select and name the ref.
To pick an existing line.
Plane if you don t none of this works.
Reference planes add a reference plane use the line tool or the pick line tool to draw a reference plane.
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.
In the drawing area select the arc line.
If you specify zero segments the default a.
Used in this way they are acting as simple construction lines.
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.
In revit reference planes can be used for two main purposes.
Using the reference plane you can control the position of the extruded roof in relation to a level.
Align roof ridges in a plan view add a reference plane.
On the properties palette specify a value for number of full segments.
In the drawing area sketch a reference plane that is not perpendicular to the roof ridges.
Name reference planes name each reference plane so you can assign it to be the current work plane.
Click architecture tab work plane panel ref plane.
In the drawing area draw the reference planes by dragging the cursor.
Click architecture tab work plane panel ref plane.
On the draw panel click pick lines.
Sketch the profile of the roof as an open loop.
In the drawing area sketch.
Click finish edit mode and then open a 3d view.
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.