Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2020 | 08/14/2020 - 14:24 | 4.0301.5e | Installation | Apply SPF to prescribed R-value over bottom of subfloor, and all surfaces of the floor joists (including the bottom), using a pass thickness maximum as indicated by manufacturer specifications Install to a thickness of least a class I vapor retarder or have at least a class I vapor retarder coating or covering in direct contact with the underside of the SPF |
Continuous pressure and thermal boundary that prevents moisture vapor movement |
Black Line | ||
| Version 2020 | 08/14/2020 - 14:24 | 4.0301.5e | Installation | Apply SPF to prescribed R-value over bottom of subfloor, and all surfaces of the floor joists (including the bottom), using a pass thickness maximum as indicated by manufacturer specifications Install to a thickness of least a class I vapor retarder or have at least a class I vapor retarder coating or covering in direct contact with the underside of the SPF |
Continuous pressure and thermal boundary that prevents moisture vapor movement |
Black Line |