You may wish to add additional levels to your Multi-plane Roof: for example, in creating a mansard roof, you want two roof levels, each with a different pitch.
1.Select the Roof.
2.In the Multi-plane Geometry panel of Roof Settings, or from the Info Box, click Add to add a new Roof ...
Use this command (Design > Roof Extras > Create Roof Level Lines) to place a Line on a selected Roof at the height value you specify.
After you place the Roof Level Line, you can place a Level Dimension there to indicate the elevation.
Note: Roof Level Lines can be placed on ...
On the Floor Plan or 3D Window:
1.Select the Roof Tool.
2.In Roof Settings or the Info Box, adjust the main roof parameters (e.g. pitch, surfaces, eaves overhang).
3.Choose the Multi-plane method from the Info Box or from Roof Settings.
4.Choose one of the construction Methods ...
For a Single-plane Roof:
Once you’ve drawn a roof and selected it, you can modify its pitch in any one of the following ways:
•Change the roof pitch in the Info Box or in Roof Settings.
•In the 3D window, select the roof, click on any point that is not on the pivot line, ...
There are two ways to create a hole in a Roof.
Method 1
1.Select the Roof in the Floor Plan or the 3D window.
2.From the contour polygon (not the pivot polygon!), bring up the pet palette and choose the Subtract from Polygon command.
3.Draw the hole in the Roof.
4.View the ...