Our energy saving double glazing features high-performance glass with gas filled sealed units, and warm edge spacer bars, for ultimate comfort whether it is warm or cold outside, and exceptional noise reduction.
An 18mm double glazed unit with a krypton gas filled cavity, in an Annealed 4/10/4 Low E formation has a typical centre pane U-value of 1.0W/m2k.
A 24mm double glazed unit with an argon gas filled cavity, in an Annealed 4/16/4 Low E formation has a typical centre pane U-value of 1.1W/m2k.