Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 08/14/2020 - 14:25 4.0401.1e Installation

Apply SPF to prescribed R-value in a continuous layer from subfloor surface, over band/rim joist and sill/wall plate, and in contact with foundation or ceiling below using a pass thickness maximum as indicated by manufacturer specifications

Install to a thickness of least a class II vapor retarder or have at least a class II vapor retarder coating or covering in direct contact with the interior (or warm) side of the SPF

Continuous pressure and thermal boundary that prevents moisture vapor movement

Black Line
Version 2020 08/14/2020 - 14:25 4.0401.1e Installation

Apply SPF to prescribed R-value in a continuous layer from subfloor surface, over band/rim joist and sill/wall plate, and in contact with foundation or ceiling below using a pass thickness maximum as indicated by manufacturer specifications

Install to a thickness of least a class II vapor retarder or have at least a class II vapor retarder coating or covering in direct contact with the interior (or warm) side of the SPF

Continuous pressure and thermal boundary that prevents moisture vapor movement

Black Line