Recruiter's Glossary

Examples: Compressor • Drain Pan • R-410A

Flex Duct

Term from Air Conditioning Services industry explained for recruiters

Flex Duct, also known as flexible ductwork, is a bendable tube used to move air through heating and cooling systems in buildings. Unlike rigid metal ducts, it can be easily curved around obstacles and adjusted to fit tight spaces. Think of it like a flexible straw that can bend any way you need it to. HVAC technicians work with this material daily when installing or repairing air conditioning and heating systems in homes and commercial buildings. It's a fundamental component that connects the main system to the vents in different rooms.

Examples in Resumes

Installed Flex Duct and Flexible Ductwork in over 200 residential HVAC systems

Performed quality inspections of Flex Duct installations in commercial buildings

Supervised team of 5 technicians in Flexible Ductwork replacement projects

Typical job title: "HVAC Technicians"

Also try searching for:

HVAC Installer Air Conditioning Technician Ductwork Specialist HVAC Service Technician Air Systems Technician Ventilation Installer

Where to Find HVAC Technicians

Professional Organizations

Job Boards

• HVAC Jobs on Indeed
• HVAC Agent Job Board
• MEP Jobs (Mechanical, Electrical, Plumbing)

Online Communities

Example Interview Questions

Senior Level Questions

Q: How do you determine the proper sizing and layout for flex duct in a complex commercial installation?

Expected Answer: A senior technician should explain how they consider factors like air flow requirements, building layout, obstacles, and pressure drop calculations to design an efficient system.

Q: What are the most common problems you've encountered with flex duct installations and how did you solve them?

Expected Answer: Should discuss issues like proper support, avoiding kinks, correct length calculation, proper insulation, and how to prevent common installation mistakes that affect system efficiency.

Mid Level Questions

Q: What are the key factors in properly supporting flex duct?

Expected Answer: Should explain spacing of supports, proper strapping techniques, maximum run lengths, and how to prevent sagging or compression of the ductwork.

Q: How do you ensure an airtight seal when connecting flex duct to rigid components?

Expected Answer: Should describe proper securing methods, use of appropriate tapes and mastics, and importance of proper overlap at connections.

Junior Level Questions

Q: What are the basic tools needed for flex duct installation?

Expected Answer: Should list essential tools like duct knives, zip ties, tape measure, duct tape, and properly-sized collars and connectors.

Q: What's the difference between insulated and non-insulated flex duct?

Expected Answer: Should explain basic differences and when each type is appropriate to use, including basic knowledge of building codes and energy efficiency.