What are roof trusses?
Roof Truss Advantages
Common Truss Types
Scissor Truss Types
Attic and Gambrel
Roof Design Limitations
What are floor trusses?
Floor Truss Advantages
Floor Design Limitations
A list of the basic specification required when requesting roof trusses includes:
– specifies how long the bottom chord needs to be.
– specifies the horizontal distance between the end of the bottom chord and the bottom edge of the top chord.
Number of Trusses
– specifies how many trusses are required. The uniform spacing of roof trusses (usually either 24 inches or 48 inches on center) makes this relatively easy to calculate.
– specifies both the live and dead loads of the top and bottom chords, as well as wind and any other loads to which the trusses will be subjected.
– specifies the plumb or square cut and any custom specifications
– specifies the vertical distance between the bottom of the bottom chord and the top of the top chord.
– specifies the vertical rise in inches per each 12 inch horizontal run.
– specifies the requirements for the truss bearing.
Type of Truss
– specifies the type of truss required.
– specifies the total vertical distance from highest point of top chord or peak to the bottom edge of the lowest bottom chord, not including the overhang.
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