Anyone experience of Gowercroft windows

[gravelrash]

Anyone experience of Gowercroft windows or windows with vacuum glazing?

[Simplysimon]

'Designed to meet the strict requirements of Passiv-Haus standards, but without the typical downsides of super-efficient products.'

 

clever, wonder if they've cracked perpetual motion as well. i know thw swiss did vacuum glazing units separated by small glass rods but wouldn't have thought they would be needed here unless it is to reduce the overall u value but as a 3g unit is down to about 0.5, how much better can it be?

[gravelrash]

seemingly the vacuum glazing from some manufacturers is down to .3