Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 14/08/2020 - 14:24 4.0302.4g Installation

Apply SPF to prescribed R-value to bottom of all exposed subfloor, and all surfaces of the floor joists, excluding the bottom using a pass thickness maximum as indicated by manufacturer specifications

Install to a thickness of a class I vapor retarder or have a class I vapor retarder coating or covering in direct contact with the underside of the SPF

Complete and consistent insulation coverage

Black Line
Version 2020 14/08/2020 - 14:24 4.0302.4g Installation

Apply SPF to prescribed R-value to bottom of all exposed subfloor, and all surfaces of the floor joists, excluding the bottom using a pass thickness maximum as indicated by manufacturer specifications

Install to a thickness of a class I vapor retarder or have a class I vapor retarder coating or covering in direct contact with the underside of the SPF

Complete and consistent insulation coverage

Black Line