Windows
Aluminum
U-Factor 0.23 Btu/h·ft2·F
Number of panes 2/3
Depth of frame 2.76 in
Depth of sash 3.11 in
upvc 2 pane
U-Factor 0.14 Btu/h·ft2·F
Ug 0.09 Btu/h·ft2·F
Frame depth 2.99 in
Sash depth 3.07 in
uPVC 3 pane
U-Factor 0.14 Btu/h·ft2·F
Ug 0.09 Btu/h·ft2·F
Frame depth 3.23 in
Sash depth 3.23 in