Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 08/14/2020 - 14:25 5.0104.1a Material selection

Select insulation:

with a flame spread and smoke development index of 25/50 when tested in accordance with ASTM E84 or UL 723 and that includes an exterior vapor retarder layer

Select duct materials:

with a flame spread of no more than 25 when tested in accordance with ASTM E84 or UL 723 and that are UL 181, SMACNA, NAIMA approved or conform to ASTM A653

Select durable and safe materials

 Black Line
Version 2020 08/14/2020 - 14:25 5.0104.1a Material selection

Select insulation:

with a flame spread and smoke development index of 25/50 when tested in accordance with ASTM E84 or UL 723 and that includes an exterior vapor retarder layer

Select duct materials:

with a flame spread of no more than 25 when tested in accordance with ASTM E84 or UL 723 and that are UL 181, SMACNA, NAIMA approved or conform to ASTM A653

Select durable and safe materials

 Black Line