For why these are superior:

Fully open mode = big hole for air go thru.

Slanty mode = very windy ez, rainy ez, rainy and very windy... just close window.

But, the innovation I miss more than the windows were the roller shutters.

First of all, light blocking. Forget blackout curtains or something, just roll down the shutters and no light is getting in. If you work nights or something, you can block the sun completely and sleep in the dark. Along with that, the light is being blocked while it's still outside. Why does that matter? Light means heat. In summer you don't want the heat inside. Block it at the shutter and it doesn't come inside to heat the inside of the house. Compare that with blinds, curtains, etc. In that case, the light has already entered the house before it hits something and heats it up. With white curtains you'll reflect a lot of the light back out, but you're still heating the interior of the house. They also reduce noise, add security, protect in bad storms, etc. But, to me, blocking the light and keeping the heat out was so much more important.

The only thing typically missing from these windows, are a hook or latch to prevent the windows from repeatedly opening and shutting when its windy

this is not a German thing. they exist outside of Europe, let alone Germany, as pretty much standard. I'm actually surprised if Americans don't have to this. although I think shouldn't be, considering in how many ways it's such an ass backwards country.

edit: just want to clarifymi that is I don't know whether Germans invented it or not; by "not a German thing" i meant it's not exclusive to Germany.

What's with all houses getting those nowadays?

Guys, this doesn't exist only in Germany.

source: I live in Eastern Europe and we have such superior window design.

I lived in Germany for several years and moved to the U.S. and purchased a "fixer-upper" home. On the docket for replacement were the windows. To make a long story short, the cost of replacing every window on the house with a normal American window was within ~$1k of the price of a single "German" window. The cost to replace all of the windows with the German style was nearly the total price of the home itself.

So yeah, I would love to have those windows, but they're not made or at least readily available in US markets.

Having 30 days of paid holiday per year is nice too.

Don't forget the mode where it's anchored only in one corner and you freak out because you feel it will fall out any moment despite you know it won't

Am American.

...................What?

We have those windows in Ireland, they are generally made and designed by Velux who are Danish.

I live, laugh, and lüfte!

I mean. Yes?

My father was a sales & marketing executive for a window company in Germany. You can prepare for a long rant whenever he sees "those dreadful sliding windows" in a TV show from the US or Great Britain. Like every time. 😅

I love these types of windows. Just need to add some mosquito/bug nets are you're all set.