Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2025 | 09/25/2023 - 11:24 | 6.0202.1a | Duct selection | The transition ducts (flexible or rigid) used to connect the dryer to the primary exhaust duct system shall be UL 2158A approved and less than 8 feet in total length with no joints. Select primary dryer ducting material that is 28 gauge metal with a smooth interior |
Smooth airflow that does not collect lint |
The committee determined the reference to 28 gauge shall remain because the IRC requires 28 gauge or thicker for all dryer vents (M1502.4.1). The committee determined a need to clarify that transition ducts connect the dryer to the primary exhaust duct. | Red Line | |
| Version 2020 | 08/14/2020 - 14:27 | 6.0202.1a | Duct selection | Select dryer transition ducting materials that are UL 2158A approved and less than 8 feet in total length with no joints Select primary dryer ducting material that is 28 gauge metal with a smooth interior |
Smooth airflow that does not collect lint |
Black Line | ||
| Version 2020 | 08/14/2020 - 14:27 | 6.0202.1a | Duct selection | Select dryer transition ducting materials that are UL 2158A approved and less than 8 feet in total length with no joints Select primary dryer ducting material that is 28 gauge metal with a smooth interior |
Smooth airflow that does not collect lint |
Black Line |