The Modern Miracle
in Construction Text reprinted with permission from the Wood Truss
Council of America
Since the invention of the 2x4 in the 1830s, there has been no greater single
force for creating change and improvement in American construction than the building component manufacturing industry. The
invention of the first metal truss connector plate in Florida in 1952 marked the beginning of the industry that in just over
five decades has vastly changed home, apartment and commmercial building construction. These changes benefit all who are involved
in the construction chain - the building designer, the builder, and the residential or commercial building owner.
Pitched Chord Roof Truss Advantages
Structures
can be enclosed more quickly.
Complex roof designs are supported by exterior walls, which eliminates
interior bearing walls and creates large, open living spaces.
This openness allows for entire
ceilings and walls to be finished with drywall sheets, up to 12 feet in length installed uncut.
The
ability of trusses to have large clear spans offers complete flexibility for the use of interior space.
Parallel Chord Floor Truss
Advantages
Parallel chord trusses offer longer spans between supports
for floor framing.
Trusses can be spaced optimally to best utilize lumber strength
and conserve timber resources.
Because parallel chord trusses are lightweight,
they are easy to handle and lift into place.
Parallel chord floor trusses provide
a surface 3 1/2 inches wide for easier nailing and better glue contact.
No hole cutting or
notching is required. Plumbing, electrical, mechanical and sanitary waste can run through spaces between web member openings.
