Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 08/14/2020 - 14:25 5.0104.1f Exterior duct construction

For exterior ducts (i.e., exposed to outdoors), use duct material that meets the following criteria:

insulation level of R-12 or greater

includes a weatherproof barrier that is resistant to ultraviolet light damage

will not be damaged by weather

Prevent condensation, reduce thermal loss or gain, protected from elements

Black Line
Version 2020 08/14/2020 - 14:25 5.0104.1f Exterior duct construction

For exterior ducts (i.e., exposed to outdoors), use duct material that meets the following criteria:

insulation level of R-12 or greater

includes a weatherproof barrier that is resistant to ultraviolet light damage

will not be damaged by weather

Prevent condensation, reduce thermal loss or gain, protected from elements

Black Line