b'THERMAL (NFRC) PERFORMANCE DATACPD Numbers are published at: http://search.nfrc.org/search/searchDefault.aspxWINDOW TYPE GLASS THICKNESS LOW -e LOW -e Argon Air IGU OA U-Factor SHGC VTProduct:Envision WindowCasement 3mm/3mm 366 1" 0.27 0.14 0.32Casement 3mm/3mm 270 1" 0.27 0.19 0.34Hopper 3mm/3mm 366 1" 0.27 0.14 0.32Hopper 3mm/3mm 270 1" 0.27 0.19 0.34Product:Envision DoorBalcony Door 3mm/3mm 366 1" 0.25 0.16 0.3524 Balcony Door 3mm/3mm 270 1" 0.26 0.21 0.38'