The meeting was well attended, with about 70 representatives from some 30 to 40 companies. In a reprise of a talk that was first presented at the SMACNA annual convention, Hughes said that the future of spiral duct manufacturing is indeed bright. While spiral duct comprises about 26% of the overall market today, it is expected to increase to nearly 31% over the next five years - representing some real growth opportunities for both installers and fabricators.
This would reflect a decline in the use of rectangular duct, from 63% to 58%. There is also an anticipated increase in the use of oval duct during that period, from 4.2% to 4.7%, with an "other" category declining slightly, from 6.9% to 6.7%.