Generating Automatic Hip and Gable Roofs


Reference Number: KB-00758
Last Modified: February 14, 2019

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors



QUESTION

How do I build hip and gable roofs automatically?

ANSWER

The automatic roof utility in Chief Architect allows you to create a wide variety of roof designs using the Build Roof dialog and the roof directives that you can set in the Wall Specification dialogs for each exterior wall in your plan.

This tutorial will cover building an automatic hip, an automatic gable roof, an automatic dutch gable, changing the pitch of a roof plane above a wall, and how to adjust the ceiling height of a room.

An automatic hip roof is the easiest type of roof to create in Chief Architect, because the program will generate a roof plane on each exterior wall in your plan by default, resulting in a hip condition.


To create an automatic hip roof

  1. Select Build> Wall> Straight Exterior Wall from the menu, then click and drag four walls to form a basic rectangular structure.

    • In this example, a 30' x 40' structure is created.


  2. Select Build> Roof> Build Roof from the menu to display the Build Roof dialog:

    Build Roof Planes box is checked in the Build Roof dialog

    Note: The Auto Rebuild Roofs option directs the program to rebuild the roof any time a change is made to the plan that will affect the roof. This option is useful for this exercise, but is not completely necessary.

    • Check the box beside Build Roof Planes.

    • Make note of the Pitch and adjust as necessary; all automatically generated roof planes will be made using the pitch specified.

    • Click OK to close the dialog and generate an automatic hip roof.

      Automatic hip roof created on structure


  3. Select 3D> Create Perspective View> Perspective Full Overview from the menu to see the results.

    Perspective Full Overview of automatic hip roof on structure

If a gable is needed above a particular wall instead of a hip roof plane, this can be set in the Wall Specification dialog of the wall in question.


To create an automatic gable roof

  1. In Floor Plan view, click on a wall that you would like to form a gable over to select it, then click on the Open Object edit button.


  2. On the Roof panel of the Wall Specification dialog, select the Full Gable Wall option, then click OK to close the dialog and apply the change.

    Full Gable Wall option selected on the Roof panel of the Wall Specification dialog


  3. If Auto Rebuild Roofs is enabled, the roof will automatically update to reflect this change. If Auto Rebuild Roofs is not enabled, select Build> Roof> Build Roof from the menu, check the box beside Build Roof Planes, and click OK to rebuild the roof.

    Left wall has been marked as a Full Gable Wall and the roof has been rebuilt


  4. Click on the wall opposite the new Full Gable Wall and repeat steps 1 and 2 above.

    Left and right walls are marked as Full Gable Walls and an automatic gable roof has been generated


  5. Select 3D> Create Perspective View> Perspective Full Overview from the menu to see the results.

    Perspective Full Overview of an automatic gable roof generated on the structure



In Chief Architect X10 and newer program versions, dutch gable roofs can be generated automatically.


To create an automatic dutch gable roof

  1. Click to select the wall over which you would like a dutch gable, then click the Open Object  edit button.


  2. On the Roof panel of the Wall Specification dialog, select the Dutch Gable Wall option, specify the Pitch leading up to the dutch gable as well as either the Starts at Height or In From Baseline value for where the dutch gable will start, and then click OK to close the dialog and apply the change.

    Dutch Gable Wall option selected, and pitch options specified on the Roof panel of the Wall Specification dialog


  3. If Auto Rebuild Roofs is enabled, the roof will automatically update to reflect this change. If Auto Rebuild Roofs is not enabled, select Build> Roof> Build Roof from the menu, check the box beside Build Roof Planes, and click OK to rebuild the roof.

    Right wall set to a Ditch Gable wall


  4. Select 3D> Create Perspective View> Perspective Full Overview from the menu to see the results.

    Perspective Full Overview of a Dutch Gable generated on the structure


The height that automatic roofs generate at is determined by the ceiling heights within the structure. So, when the ceiling height for an area is adjusted, the automatic roof plane directly over this area will adjust accordingly when the roof is rebuilt.


To control the height of automatic roofs

  1. Select Edit> Default Settings from the menu, and in the Default Settings dialog, expand Floors and Rooms, expand Floor Levels, select the floor you'd like to change, and click the Edit button.

    In X10, navigate to the floor you'd like to change, navigate to Edit> Default Settings, expand Floors and Rooms, select Current Floor, and then click the Edit button.


  2. In the Floor Defaults dialog that displays, change the Finished Ceiling to 121 1/8", then click OK to close the dialog and apply the change.

    Specify a different ceiling height within the Floor Defaults dialog


  3. If Auto Rebuild Roofs is enabled, the roof will automatically update to reflect this change. If Auto Rebuild Roofs is not used, select Build> Roof> Build Roof from the menu, check the box beside Build Roof Planes, and click OK to rebuild the roof.

  4. To see the difference that this change makes on roof height, select Build> Wall> Straight Exterior Wall  from the menu, then click and drag to draw a wall perpendicular to the ridge of the roof.

    Straight Exterior Wall separating the structure into two separate rooms


  5. Click on this wall to select it and click on the Open Object edit button to open the Wall Specification dialog.

    • On the Structure panel, check the box beside Balloon Through Ceiling Above.

    • On the Roof panel, select the Full Gable Wall option, check the box beside Lower Wall Type if Split by Butting Roof, and then specify the wall type to be used for the interior wall portion.

      In this example, an Interior-6 wall type is specified.

    • Click OK.


  6. Click in an empty space in the room on the right to select it, then click the Open Object edit button and on the Structure panel of the Room Specification dialog that displays, delete the Finished Ceiling value and type in 97 1/8", then click OK to close the dialog and apply the change to this room.

    Specify a lower ceiling height within the Room Specification dialog


  7. If Auto Rebuild Roofs is enabled, the roof will automatically update to reflect this change. If Auto Rebuild Roofs is not used, select Build> Roof> Build Roof from the menu, check the box beside Build Roof Planes, and click OK to rebuild the roof.

    Roof planes generated at different heights for each of the rooms in the structure


  8. Select 3D> Create Perspective Camera> Perspective Full Overview from the menu to see the results.

    Perspective Full Overview of a structure with roof planes at different heights

    It's important to remember that automatic roofs are generated based on the current ceiling heights. If you change the ceiling height after the roof is built, the height of the roof will not be affected until it's rebuilt.