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Tuesday, June 23, 2026
2:00 PM EDT
What are the trade-offs when selecting duct mastic? There are many! This webinar will detail what HVAC material buyers and technicians need to know when selecting duct mastics, including matching mastic to spec, alternatives to liquid mastic, and where UL 181 listings fit.
For HVAC Technicians
• Choosing and applying the right type of mastic for the job.
• True mastic tapes, what they are and how they differ from other foil tapes.
• UL standards, what they mean, why they matter and what is fully “Listed”.
• How to reduce leaks and callbacks by spotting pitfalls early.
For HVAC Business Owners or Managers
• Better select mastic to meet specs while balancing cost, safety, and compliance.
• Make smarter labor tradeoffs when choosing from mastic options.
• Better match proper UL designations with substrate for a code compliant system.
Speaker
Frank Forrest
Senior Product & Training Manager
Carlisle HVAC Brands
Sponsored by
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Basic Furnace teaches students how to identify, maintain, and trouble shoot the most common heating and air conditioning systems encountered while performing weatherization measures. Students leave with an understanding of ventilation requirements for combustion appliances, as well as a firm grasp of the health and safety implications of improper installation, maintenance, and use. The course follows the Department for Energy’s standardized curriculum for Heating Systems for Energy Auditors/Inspectors and aligns with HVAC tasks under the NREL Job Task Analyses for Energy Auditor and Quality Control Inspector. The structure of the course includes lecture, dialogue, and practical experience through hands-on skill sets.
Day 1 1:00-5:00 p.m.
Day 2 8:30 a.m. – 5:00 p.m.
Day 3 8:30 a.m. – 5:00 p.m.
Day 4 8:30 a.m. – 12:00 p.m.
Please email classes@weatherization.org or call 406-586-0070 with any questions.