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Scissor truss fraimed adjoining gable roof images.
A flat bottom chord gable end frame used with adjacent trusses that have sloped bottom chords see figure b3 42b creates a hinge in the wall gable interface that is below the bottom chord plane diaphragm.
A stick framed house used 20 643 board feet of lumber while a component framed house including roof trusses used only 15 052 board feet of lumber.
May 31 2017 explore tanya ritchie s board scissor truss design on pinterest.
The rise will be the elevation change over the 12 inches.
Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.
That is 25 less lumber which means more money in your pocket as the builder and more money in the pocket of the homeowner.
The run or the base number is 12 inches.
For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
Click and drag to draw a roof truss perpendicular to the ridge line of the roof and ceiling planes.
Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run.
Scissor trusses flat bottomed gable ends 10 14 2019 page 50 of the bcsi b3 states the following.