Free Technical Paper Addressing Zinc Coating on Galvanized Steel Ducts Available at

For more information, contact

Rosalind P. Raymond

Director of Public Relations and Communications

CHANTILLY, Va. – A free technical paper reviewing specifications and requirements for zinc coating on galvanized steel ducts is now available at the SMACNA Web site,

This new technical paper reviews SMACNA’s "HVAC Duct Construction Standards – Metal and Flexible," second edition, 1995, specifications and requirements for zinc coating on galvanized steel ducts. By referencing specific paragraphs and pages, commentary is offered to clarify the meaning, scope or intent of the manual. In addition the paper reviews zinc coating thickness variations, as commonly used in trade practice. Also included are the burdensome effects of imposing a universal requirement of G-60 and/or G-90 coating for all components.

The complete report is available free of charge at the SMACNA Web site,, in the "technical services" section.

SMACNA, an international trade association representing 4,500 contributing contractor firms, is dedicated to promoting quality and excellence in the sheet metal and air conditioning industry. SMACNA has national offices in Chantilly, Va., outside of Washington, D.C., as well as on Capitol Hill.


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