Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 08/14/2020 - 14:24 4.0302.4b Material selection

Select insulation that has a flame spread and smoke development index of 75/450 or less and backing material that has a smoke development index of 450 or less when tested in accordance with ASTM E84 or UL 723

Select rigid backing material that:

is a permanent air barrier

will support installed insulation without failure

Select fire safe materials

 Black Line
Version 2020 08/14/2020 - 14:24 4.0302.4b Material selection

Select insulation that has a flame spread and smoke development index of 75/450 or less and backing material that has a smoke development index of 450 or less when tested in accordance with ASTM E84 or UL 723

Select rigid backing material that:

is a permanent air barrier

will support installed insulation without failure

Select fire safe materials

 Black Line