This is the first edition of the SMACNA Phenolic Duct Construction Standards. This American National Standard (ANSI/SMACNA 022-2015) contains instruction, tables and details intended to provide basic phenolic duct fabrication and installation standards to the industry.
The standard includes model project specifications, duct performance characteristics, specifications and closures, fittings and connections, reinforcement, hangers and support, accessories, and an inspection checklist. The standard is applicable for ducts up to 80 in. x 80 in. size that operate to 4 in. wg positive pressure class and to 3 in. wg negative pressure class.