Roof Planes
Insert Roof Planes
Step 1 - Create Roof Planes
Begin insertion by clicking the + Create
button, right-clicking in empty space, or using the Ctrl + Q
keyboard shortcut and selecting Roof Plane
.
Tip
You can use the Ctrl + Q + R
keyboard shortcut to begin inserting a Roof Plane.
Step 2 - Place and Insert Roof Planes
When the Roof Plane Creation
subpanel opens, Picking
mode is enabled by default. Hover over the wall you wish to place a plane on and click the outside line to insert a roof plane.

Cut Roof Planes
Once all the desired planes have been inserted, they must be cut to determine geometry.
Step 1 - Select a Roof Plane to Cut
Select a roof plane and right-click Cut plane
.
Step 2 - Pick Roof Planes
Pick other planes to cut against. Click Finish Cutting
to save your changes and exit cutting mode.
Tip
Hold Shift
to cut against any line vertically, such as for a gable end.

Delete Roof Planes
To delete a single plane right-click the plane in the scene and choose Delete Plane
. If you would like to delete multiple planes at a time, hold down the Ctrl
key and click each plane in the right sidebar. Once you have selected your planes, click the Delete
icon to remove them.
Modify Plane Properties
Step 1 - Open the Roof Plane Properties Subpanel
Select the roof plane and open the Right Sidebar
or right-click the roof plane and select Edit Properties
.
The properties below can be modified during insertion as well as after in the Roof Plane Properties
subpanel.
Definition
Click the Pick
button to select a different Bearing Plane
to define the Roof Plane or use the checkbox to flip the orientation.

Slope
Use the Slope
input to modify the slope of the selected plane.

Overhang
Use the Overhang
input to change the overhang dimensions.

Heel Method
Use the Heel Method
select to swap between Butt Cut
and Heel Height
. Changing this setting will also change the corresponding input to modify the dimensions.

Top Chord Width
Defines the top chord board size (ex. 3 1/2", 5 1/2", 7 1/4", etc.). This value is used to calculate the heel height when using the Butt Cut method.
Sub-fascia Thickness
Defines the distance to hold back the overhang. If Overhang is defined as 1' and Sub-fascia Thickness is defined as 1-1/2", then the actual overhang will be 1' 10 1/2"
Cantilever
Defines an offset distance to place the plane's origin. This can be a positive or negative value. The Overhang is applied to the end of the cantilever. The Heel Height is applied at the end of the Cantilever.
Decking Thickness
Defines the thickness of the roof sheathing (ex. 7/16"). This is use to determine the length of valley trusses when the bottom cut is defined by an underlying roof plane.
Fascia Height
Use this tool to match the current plane's fascia to another plane's. Use this tool to match the current plane's fascia to another plane's. This is used when you are matching a plane with a larger slope value to a plane with a lower slope (ex. match an 8/12 to a 6/12). This will adjust the larger slopes heel height so the fascia aligns with the lower slope.

Last updated