The insulated glazing reduces both the transfer of heat by sunlight and by hot or cold air. So you can have bigger windows and more light yet still save more energy than with a smaller single pane window.
The development of our double glazed double hung window has proved very popular, with the thickness of the DGU at 18mm, it allows a 10mm airspace on most applications.
With an ever increasing range of high performance glass becoming available, this product gives the noise & energy saving solutions required on an ever increasing amount of building projects.
We have also been mindful of the need for a minimum frame width.