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        Engineered Roof Trusses         

 Wood trusses are now commonly used throughout the United States, Canada, and other parts of the world and have replaced conventional roof framing in 58% of all single and multi-family construction. Demand for trusses is growing in the commercial, agricultural, industrial, and institutional markets as well. There are approximately 1600 truss manufacturers located throughout the United States. Truss popularity continues to increase due to the many advantages of their uses.

1. Structures can be enclosed more quickly when trusses are used, saving time at the job site and possibly avoiding weather-related delays.

2. Exterior walls and many roofs can be erected without the placement of interior bearing partitions, creating one large, open living space.

3. The ability of trusses to have large clear spans offers complete flexibility for the use of interior space, in line with the more progressive approach to building design. Partitions under clear spanning trusses can be moved without compromising the structural integrity of the building.

4. Pre-engineered roof truss construction eliminates guesswork, provides a more uniform roof appearance, and speeds the construction process.

5. Waste due to cutting errors in conventional framed roof construction is greatly diminished.

6. Trusses decrease the possibility of material shortage delays, because the roof framing is supplied in one material package.

7. Trusses manufactured with any dry lumber do not warp or twist, creating a framing system that is easy to place and sheath.

8. By eliminating interior bearing walls, trusses also save the cost of interior foundation walls, interior partition top plates and headers.

9. Trusses can be spaced (e.g., 16" or 24" on center, etc.) to optimize strength and lumber resources. In residential construction, typical spacing is 24" on center, as opposed to 16" on center for traditional framing techniques.

10. Raised heel energy trusses enhance the energy efficiency of a structure by accommodating a greater amount of insulation than more traditional framing techniques.

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Last modified: 09/05/06