By using Roof Trusses instead of conventional framing, there is a significant savings in the amount of material needed to do the job. Labor costs are also reduced as a properly designed system requires much less time to complete than conventional framing. Because trusses can be designed to span long distances, the need for interior bearing walls and footings can be eliminated in most cases. 

State of the art technology in the design software and manufacturing techniques also allow for more complex designs to be accomplished than could be with conventional framing.