Funnily enough we call the small thin ones in the picture I posted “Persienner”.
They don’t provide any significant insulation but they can also cover the whole window and block light pretty well. Not perfectly, but good enough for most applications.
If they aren’t enough for you, you can have specific black out curtains that either roll down or slide in front of the window. I suspect black out curtains exist literally everywhere. I am just mentioning it for completeness sake.
I suspect black out curtains are especially common where they get sun 24/7 during the summer.
Funnily enough we call the small thin ones in the picture I posted “Persienner”.
They don’t provide any significant insulation but they can also cover the whole window and block light pretty well. Not perfectly, but good enough for most applications.
If they aren’t enough for you, you can have specific black out curtains that either roll down or slide in front of the window. I suspect black out curtains exist literally everywhere. I am just mentioning it for completeness sake.
I suspect black out curtains are especially common where they get sun 24/7 during the summer.