You can either add a roof with a loft (a new storey) or add it to the current storey.


To add a roof with a loft:

  1. Select the upper storey of you building in the Building Properties tab of the Inspector.
  2. Choose Building→ Add AutoRoof Above Current Storey from the Edit menu or click the Add AutoRoof Above the Current Storey button in the Inspector.
  3. In the Roofing Assistant dialog box, select a roof’s thumbnail to select the roofing type.
  4. Drag the Roof Orientation slider as needed to fit onto the building.
  5. Specify the type of soffit to use.
  6. A soffit is the area between the outside edge of the roof and the wall the roof is on.
  7. Click OK.

To add a roof in the current storey:

  1. Select the upper storey of your building in the Building Properties tab of the Inspector.
  2. Choose Building→ Add AutoRoof on Current Storey from the Edit menu or click the Add AutoRoof on the Current Storey button in the Inspector.
  3. In the Roofing Assistant dialog box, select a roof’s thumbnail to select the roofing type.
  4. Drag the Roof Orientation slider as needed to fit onto the building.
  5. Specify the type of soffit to use.
  6. Click OK.

Once you have added a roof to your project, you can change its properties using the Inspector.

After adding a roof, the bottom of the Inspector on the Building Properties tab changes its function from adding to removing the roof.