The association’s popular duct construction standards manual will be the topic of SMACNA’s first public online seminar.

The Sheet Metal and Air-Conditioning Contractors’ National Association’s May 20 Webinar will include demonstrations on how to use the tables for rectangular duct pressure class and transverse joints included in the third edition of HVAC Duct Construction Standards-Metal and Flexible.

SMACNA officials say anyone involved in duct construction will benefit from the 90-minute seminar. Registration is $145 per Internet connection for nonmembers.

For details and to sign up, visit SMACNA’s Web site and select “New education programs.”