Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2020 | 08/14/2020 - 14:25 | 5.0105.3b | Duct materials | Use only rigid ducts of 26 gauge or greater for crossover connections in subspaces (i.e., crawlspaces, belly area) In attics, if sufficient space is not available for rigid duct installation, UL 181 approved flexible duct may be used |
Select durable materials that maximize airflow |
Black Line | ||
| Version 2020 | 08/14/2020 - 14:25 | 5.0105.3b | Duct materials | Use only rigid ducts of 26 gauge or greater for crossover connections in subspaces (i.e., crawlspaces, belly area) In attics, if sufficient space is not available for rigid duct installation, UL 181 approved flexible duct may be used |
Select durable materials that maximize airflow |
Black Line |