Fenestration Performance Grades with Water Resistance Pressure by Province for Open Terrain 2014, Member Only Fenestration Performance Grades with Water Resistance Pressure by Province for Open TerrainSep 15, 2014 Fenestration Performance Grades with Water Resistance Pressure by Province for Open Terrain – Sept. 2014 – NAFS Performance Histograms Skills Posted on September 15, 2014 ← Canadian Building Codes and Standards Review-J. Baker Sept. 2014 FC Webinar Slides Fenestration Performance Grades with Water Resistance Pressure by Province for Rough Terrain →