Page 885 - Chief Architect Reference Manual

Truss Bases

To work correctly, a truss base must be in the
same plane with the underlying roof plane,
so their baselines should be collinear.

To create a truss base
1. Create an L-shaped house with a reverse
gable roof.

3. Move the pointer and click on the point
where the gable intersects the main roof.

The triangular area of overlap between the
main roof and the gable must be defined as a
Truss Base.
2. Select Build> Roof> Truss Base ,
then draw a baseline that is collinear
with the baseline of the roof plane that
will support the overbuild. See “The 4. A rectangular Truss Base is created. Use
Baseline” on page 789. its edit handles to reposition it and
change its shape as needed.
• The two angled sides should be collin-
ear with the roof valleys.
• The straight bottom edge must remain
collinear with the Truss Base baseline
and that of the underlying roof plane.

885