Page 800 - Chief Architect Reference Manual

Chief Architect X10 Reference Manual

1 Specify the Height and Pitch of the dialog and in roof plane labels. Values
selected roof plane(s). Heights are between -89° and 89° can be entered.
measured from the top surface of the roof When Pitch in Degrees in unchecked,
plane(s) rafters or trusses. See “Roof Planes” Pitch is described in terms of rise and run:
on page 788. x inches in 12 in Imperial plans and x mm
• Define the Ridge/Top height, or lock this in 1000 in metric plans.
value to make it the roof plane’s pivot Measurements - Information about the
point. 2 structure of the selected roof plane(s)
• Define the Baseline height, or lock this displays here, mostly for reference.
value to make it the pivot point. • Specify the Structure Thickness for the
• Define the Fascia Top height, or lock this selected roof plane. The default structure
value to make it the pivot point. is defined in the Build Framing dialog.
See “Build Framing Dialog” on page 844.

Note: The Fascia Top height will decrease • The Birdsmouth Depth is the plumb or
slightly if the fascia edge is aligned with the vertical depth of the birdsmouth cut. To
ridge top of another roof plane. change it, move the roof plane some way.
For example, if you lock the pitch and
• Define the Shadow Board Top height, or raise the roof plane by one inch, you will
lock this value to make it the pivot point. decrease the birdsmouth depth by one
Only available when Shadow Boards are inch. See “Birdsmouth Cut” on page 797.
present on the selected roof plane. See • The Birdsmouth Seat is the horizontal
“Fascia and Shadow Boards” on page width of the birdsmouth cut. This value is
829. dynamically linked to the birdsmouth
• Specify the Pitch for the selected roof depth - if one changes, so does the other.
plane, or lock this value to move the roof • The Vertical Structure Depth is defined
plane vertically when a Height value is by measuring a plumb line across the roof
changed. plane structure. The degree of pitch
• Check Pitch in Degrees to display the affects the Vertical rafter width. The
pitch value in this dialog in degrees in this

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