R-775 I Highlights Cross section Description Performances Dimensions Options Glazing options Back to the models ENERGETIC PERFORMANCE Model Glass U Factor R Factor 2+1 Clear 0.40 2.50   LoE² 0.31 3.23 GRILLS Georgian 5/8" Rectangular 5/8" Rectangular 5/16" Navigation : Patio doors > Aluminium Models > R-775 I > Glazing options All Right Reserved - Roberge & Fils ©2002-2011 - Designed and programmed by Radium inc.