What's New In Version X1 Training Video: Roofs - Automatic Overhangs for Different Pitch Roof Planes
Select one or more roof planes and click the Open Object 
edit button to open the Roof Plane Specification dialog.
Locking any one of the first three values defines that value as the pivot point for the plane. Each of these dimensions is measured from the first floor default elevation of 0' - 0".
If you lock the pitch and change one of the other values, the roof plane moves vertically, keeping the same slope. It does not pivot.
For a conversion to degrees, see "Roof Pitches in Degrees".
There are four values that define the height, or 3D orientation of a roof plane: Ridge/Top, Baseline, Fascia Top and Pitch. These values are interrelated. When one value changes, others change as well, unless locked.
Changing these values does not affect the 2D representation of the roof plane.
Define a new value for the Ridge/Top of the selected roof plane.
Define a new Baseline height.
Define a new height for the Fascia Top.
Change the Pitch for the selected roof plane. This overrides the default pitch set in the Build Roof dialog.
Check Pitch in Degrees to display the pitch value in degrees. Values between -80 and 80 degrees are acceptable.
Set the baseline angle. A positive value makes the baseline tilt upward from its start point. A negative value causes it to tilt downward. The wall top under this baseline tilts with it.
The baseline height is specified at the start or end of the baseline using the Start and End radio buttons. In floor plan view, the baseline direction is clockwise around the house.
Rafter Depth - Specify the rafter depth for the selected roof plane. The default rafter depth for the roof is set in the Framing dialog. To set the rafter depth to the default, type a "d" in this field.
Birdsmouth Depth - The plumb or vertical depth of the birdsmouth cut is shown for reference; it cannot be edited directly. To change it, move the roof plane up or down or change the pitch. For example, if you lock the pitch and raise the roof plane by one inch, you decrease the birdsmouth depth by one inch.
The birdsmouth width is determined by the width of the top plate
Birdsmouth is zero if this roof plane was automatically gernated and the Trusses (No Birdsmouth) check box was checked in the Build Roof dialog.
The Vertical Rafter Depth is defined by measuring a plumb line across the rafter. The degree of pitch affects this value. The greater the pitch, the greater the vertical rafter depth.
Top of Plate is shown for reference. It is defined by the ceiling height for the room.
Overhang from Baseline is shown for reference and cannot be edited here.
Check Curved Roof to curve the selected roof plane(s).
A flat roof plane oriented horizontally has an angle of zero at both the ridge and the eave. It also has a radius of zero. You can enter the Angle at eave, the Angle at ridge, or the Radius to roof surface and press the Tab key to update the other values. All three values are interrelated and dynamic. Changing one changes the others. In order to maintain the underlying pitch (the chord of the curved roof), the other values must compensate.
Click the Num Style button to change the way
numbers display in the dialog. Changes made here do not affect the plan.
Specify the rafter tails to be Square Cut or Plumb Cut here. This overrides the setting on the Options tab of the Build Roof dialog.
Boxed Eave - Specify boxed or sloping eaves. This overrides the setting on the Options tab of the Build Roof dialog.
Higher Eaves Boxed - If the selected roof plane contains more than one eave, check this box to box the higher eaves as well. You can specify the Length of the boxed eaves or check Default to Overhang to extend the boxed eave from the edge of the roof to the exterior main layer of the wall, covering the overhang area.
Display this Plane One Floor Up/Down - Check one of these to change the floor where this roof plane displays in floor plan view.
Gable Fascia - The width of a fascia on a gable end. The default is 7 1/2". If you want to change this value, remove the checkmark from Default. To return to default, replace the checkmark.
Eave Fascia Width - The width of fascia on the eaves. The default is 7 1/2". If you want to change this value, remove the checkmark from Default. To return to default, replace the checkmark.
Gutter - Uncheck this to remove gutters from the selected roof plane.
Mark as Edited - When you select a roof plane and move or reshape it, the system marks it as "edited." When you rebuild roofs from the Build Roof dialog, check Retain Edited Roof Planes to prevent these marked planes from being deleted. Checking Mark as Edited also marks a roof plane, even if it has not been edited. Edited planes can also be unmarked.
For information about the Polyline tab, see "Polyline Tab".
For information about the Selected Line tab, see "Selected Line Tab".
For information about the Line Style tab, see "Line Style Tab".
For information about the Fill Style tab, see "Fill Style Tab".
For information about the Materials tab, see "Materials Tab".
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