With all the struggling we see to create higher performance windows, this strategy seems to make tremendous sense. No new tech is going on here, no triple glazed panes. Everything is off the shelf, and the frames have no new tech either - just aluminum clad wood. Yet they can out-perform all of the crazy expensive “Passive House” windows. Hmmm.
Another eastern EU window manufacturer with a claimed Passive House window.
The construction of the window looks interesting. There is an exterior cork cladding for an effective thermal break. This is backed by what I am guessing is a weather durable wood species, and then a different wood species for the interior frame and sash. The exterior is also clad in Aluminum, but it looks to be only a sill cladding - the location that benefits most from the durability of metal.
Intus, another EU wood frame, aluminum clad w/triple glaze. They also have an unclad wood frame.
Zola - another European window maker marketing triple glazed units to the US. This is a aluminum clad wood frame, with a laminated wood sash. The laminates include a synthetic layer they call “Purenit™” which acts as a thermal break - the light layer in the photo above.
Company says they are in Colorado, manufactured in Europe - not sure where. They have several different frame lines, including a PVC line.
looks like an April Fools gag, but you never know…
Another EU window maker with triple glazed in an aluminum clad wood frame - insulation filled AL in this case.
Best performing windows? Spruce Fir interior. Cork thermal break. Larch Exterior. Aluminum Cladding optional. German origin, passive house certified, sustainable materials.
Impressive. But how about a window that cost half as much, and did 90% of the energy performance. A window that anybody could have in their house.
Aluminum + bamboo composite window frame.