A veteran HVAC expert argues that invisible duct leaks cost owners far more than they realize –
and that better craftsmanship and stricter standards can pay off for decades.
Switching from liquid mastic to Carlisle's Hardcast VOC Rolled Mastic Sealants helped a well-respected, mid-size HVAC and plumbing service company in Central Texas cut costs, eliminate installation mess, and reduce duct leakage. It also earned the contractor praise and $100,000 in annual savings.
The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) unveils the fourth edition of its comprehensive HVAC Duct Systems Inspection Guide.
The more we can analyze potential problems with equipment used in different types of system designs, the better we can assist our clients in design reviews
There are many design aspects that are evaluated early in project development to help foresee potential problems that may arise during test & balance (TAB).
Used in general ventilation and air-conditioning systems, air-control devices include louvers, dampers, gravity ventilators, round spiral duct, and transverse duct connections.
May 4, 2023
AMCA Publication 511-21 (Rev. 12-22) is available free of charge in PDF format.
In this webinar we will detail what HVAC material buyers and technicians need to know when selecting duct mastics, including matching mastic to substrate, alternatives to liquid mastic, and where UL 181 Listings fit into real world installations.