// CODE SNIPPET
C403.11.1 Duct and Plenum Insulation and Sealing (Mandatory)
JUMP TO FULL CODE CHAPTER
Supply and return air ducts and plenums shall be insulated with not less than R-6 insulation where located in unconditioned spaces and where located outside the building with not less than R-8 insulation in Climate Zones 1 through 4 and not less than R-12 insulation in Climate Zones 5 through 8. Where located within a building envelope assembly, the duct or plenum shall be separated from the building exterior or unconditioned or exempt spaces by not less than R-8 insulation in Climate Zones 1 through 4 and not less than R-12 insulation in Climate Zones 5 through 8.
Exceptions:
- Where located within equipment.
- Where the design temperature difference between the interior and exterior of the duct or plenum is not greater than 15°F (8°C).
Ducts, air handlers and filter boxes shall be sealed. Joints and seams shall comply with Section 603.9 of the Mechanical Code of New York State.
Related Code Sections
C403.11.1 [CE] Commercial Energy Efficiency, Duct and Plenum Insulation and Sealing (Mandatory)
Supply and return air ducts and plenums shall be insulated with not less than R-6 insulation where located in unconditioned spaces and where located ...
2020 Energy Conservation Code of NYS > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.11 Construction of HVAC System Elements (Mandatory) > C403.11.1 Duct and Plenum Insulation and Sealing (Mandatory)
C403.2.9.1 [CE] Commercial Energy Efficiency, Duct Construction
at static pressures greater than 3 inches water gauge (747 Pa) shall be insulated and sealed in accordance with Section C403.2.9. In addition, ducts ...
New York State Energy Conservation Construction Code (NYSECCC) > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.2 Provisions Applicable to All Mechanical Systems (Mandatory) > C403.2.9 Duct and Plenum Insulation and Sealing > C403.2.9.1 Duct Construction
503.2.7.1 Commercial Energy Efficiency, Duct Construction
Ducts designed to operate at static pressures in excess of 3 inches w.g. (746 Pa) shall be insulated and sealed in accordance ...
2010 Energy Conservation Code of NY > 5 Commercial Energy Efficiency > 503 Building Mechanical Systems > 503.2 Provisions Applicable to All Mechanical Systems (Mandatory) > 503.2.7 Duct and Plenum Insulation and Sealing > 503.2.7.1 Duct Construction
503.2.7.1.1 Commercial Energy Efficiency, Low-Pressure Duct Systems
All longitudinal and transverse joints, seams and connections of supply and return ducts operating at a static pressure less than or equal to 2 ...
2010 Energy Conservation Code of NY > 5 Commercial Energy Efficiency > 503 Building Mechanical Systems > 503.2 Provisions Applicable to All Mechanical Systems (Mandatory) > 503.2.7 Duct and Plenum Insulation and Sealing > 503.2.7.1 Duct Construction > 503.2.7.1.1 Low-Pressure Duct Systems
503.2.7 Commercial Energy Efficiency, Duct and Plenum Insulation and Sealing
All supply and return air ducts and plenums shall be insulated with a minimum of R-5 insulation when located in unconditioned spaces ...
2010 Energy Conservation Code of NY > 5 Commercial Energy Efficiency > 503 Building Mechanical Systems > 503.2 Provisions Applicable to All Mechanical Systems (Mandatory) > 503.2.7 Duct and Plenum Insulation and Sealing