Adopts With Amendments
Chapter 6
Duct Systems
International Mechanical Code 2024
[F] 601.1 Duct Construction Scope
Section 601.1 — Duct Construction Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 601.2 Return Air Limitations
Section 601.2 — Return Air Limitations. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 602.1 Plenums General
Section 602.1 — Plenums General. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 602.2 Stud Cavity Plenums
Section 602.2 — Stud Cavity Plenums. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 603.1 Duct and Plenum Materials
Section 603.1 — Duct and Plenum Materials. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 603.4 Metallic Duct Materials
Section 603.4 — Metallic Duct Materials. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 603.6 Flexible Ducts
Section 603.6 — Flexible Ducts. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 603.9 Duct Insulation
Section 603.9 — Duct Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 604.1 Fire and Smoke Dampers
Section 604.1 — Fire and Smoke Dampers. This section addresses fire protection and life safety requirements. Specific provisions depend on building type, occupancy, and construction classification. Refer to the official code text for complete requirements.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.