Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2025 09/22/2023 - 10:08 4.0202.6b Material selection

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

Insulation should be low expansion foam that does not contain formaldehyde

Select safe materials

 Not all injected foams are formaldehyde based and adding a requirement that the product not contain formaldehyde and be low expansion foam variety will improve the safety and durability of installations. Since the material specification includes new language, the objective needs to be changed slightly to better align. Red Line
Version 2020 08/14/2020 - 14:24 4.0202.6b Material selection

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

Select fire safe materials

 Black Line
Version 2020 08/14/2020 - 14:24 4.0202.6b Material selection

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

Select fire safe materials

 Black Line