I like the design alot as well (EU resident, have had these windows for 15 years)<p>However, this statement from the article is misleading:<p>> the tilt configuration locks into place against potential intrusions... In other words: you can leave the window open when you are away without worrying too much about security or the weather.<p>It is trivially easy to open, from the outside, a window left in the tilted open position. All that you need to do is to pull the window closed and then move the handle from vertical to roughly horizontal (the 'full open' position).<p>How do you move a handle on the inside of the window when you are on the outside? It is simple, you use a short length of PVC pipe (which fits over the handle) and some string. The details I leave to your imagination.<p>take-home message: tilted open is nice, but not at all secure against a semi-motivated intruder.
While window researching recently I read an interesting comment, likely on a Green Building Advisor article - in many cases the inswing TNT better fits the European use of roll down shutters, whereas American casement windows better suit their more common use of drapes. Not sure if there’s data to back it up but it’s an plausible cultural/architectural reason for slower adoption in the US.
This design is wonderful. I like it a lot. It is a very different and more limited experience when you also have a screen to keep the hordes of mosquitoes out.
Windows, doors, and locks are some of the most glaring differences you notice when you move back to America after living in Germany. Finding an architect who knows how to source them and build with them in the US is not easy.
It's one of these interesting little differences between America and - for example - Germany where tilt-and-turn is basically standard in every house I've ever been.
> Cost may play a part, as these heavily-engineered windows do come with a higher price tag than some of their less-sophisticated counterparts.<p>This should be read as "a higher price tag in the US". In mainland Europe these are the standard windows, and are made by many manufacturers all over the continent, they are not a luxury item.<p>I'm building a house and a 1.2m (62") X 0.6m (24") window with this mechanism, the best frame available (from this manufacturer) and triple glazing was €180. I doubt you could even find a casement window at a US home improvement store for that.<p><a href="https://www.koemmerling.com/en/products/window-residential-door-systems/88-mm-system/" rel="nofollow">https://www.koemmerling.com/en/products/window-residential-d...</a>
I had the chance to put these on a house I built. I ended up not doing it and using a more standard type. I slightly regret not having them in a few of my window use cases BUT, at least the ones I saw, felt very flimsy and rattled/slammed a lot.<p>Another challenge for this type of window: it's challenging to hook up a portable AC unit in an aesthetically. This is a factor if you don't have central air and need to retrofit cooling.
Hate these kind of windows. They can't be screened. I guess technically you could have the screen on the outside but that's not great except on ground floor.