WINDOWS NOT DISPLAYING IN PLAN VIEWS

WINDOW SILL IS HIGHER THAN PLAN VIEW'S CUT PLANE

Even though all windows exist as 3D elements in your Revit model, that doesn’t mean they will necessarily appear on drawings.

If a window’s sill is above a floor plan view’s cut-plane it will not appear in your plans, and therefore as far as the builder or QS is concerned, does not exist.

To make a high level window appear on in a floor plan view place a Plan Region over the window. A Plan Region allows you to specify a different cut-plane within the area defined by the Plan Region.

You’ll find the Plan Region command under View tab, Plan Views button:

You are put in Sketch mode, draw sketch lines to form a boundary around the area you want to change. Don’t draw too close, any flip controls within the object you want to show must be within the boundary.

After finishing the boundary lines select them, hit the View Range button and edit the cut plane value. Note that the Top: Offset must be greater than the Cut plane: value.

WINDOW FAMILY NOT MADE CORRECTLY

Windows may not display in plan correctly if you are relying on model (3D) elements to show your window in plan.

The plan view of any window uses the Cut Plane height set in the View Range of its Ref Level plan view, as set in the originating window family file. If the nested window has a Default Sill Height parameter this will also affect where the window is cut in plan. So if either of these parameters have a value that means the cut plane doesn’t bisect the window, it won’t appear in plan. You may still see sills in plan, but you won’t see any cut window frames or glass.

The problem becomes more confusing if you are using nested windows, as this applies to each nested window as well.

The correct procedure is to make all model components not visible in Plan/RCP and when cut in Plan/RCP (using the Visibility/Graphics Overrides parameter). Then draw a plan representation using symbolic lines.

If you need to show model elements in plan then:

In the family file(s) of nested window(s):

• • Set Default Sill Height to a sensible value (same as usual sill height in your project, if possible). Make sure you do it for all Types (Default Sill Height is an instance parameter).

  • iIn the properties of the Ref Plan view, under View Range, set Cut Plane Height to a value that cuts through the window(same as plans in your project, if possible).

  • In the family file that will contain the nested window(s):

  • Set Default Sill Height to same value as set in the nested windows. - make sure nested window’s Sill Height parameter is the same as the Default Sill Height above. - in the properties of the Ref Plan view, under View Range, set Cut Plane Height to same value as set in the nested windows. - check to see if the window is displaying correctly in the Ref Plane view. But neither of these solutions will solve your problem if your windows have a sloping frame (i.e. not vertical). In this case:

If you are using symbolic lines, create instance parameters to allow you to change the way symbolic lines appear (e.g. a ‘display in plan width’ parameter).

If relying on model (3D) elements, and if your windows are always at the same sill height, you could match the family file’s Cut Plane Height and Default Sill Height with your project. If not, either accept your plan is only diagrammatic, or fake it using drafting tools.