NCCER Installation of Ductwork (04106) NCCER’s ductwork installation module goes beyond standard HVAC routing by requiring hands-on competency in fibrous glass, metal, and flexible duct systems across residential and commercial applications. Installers must navigate code-compliant sealing, insulation thickness, and pressure-drop calculations? skills that separate journeymen from apprentices on actual job sites.
| Exam Name | NCCER Installation of Ductwork |
| Exam Code | 04106 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
