Exterior or interior roller shutters in new construction?

Why should there be insulation problems if the inspection opening is to be opened from inside and below the roller shutter box? It is rather the opposite, since - if you ever have to get to it - plaster and insulation have to be removed?

Why should insulation and plaster be removed? Apparently, you have never seen such a masonry box. It is a very similar system to when it is opened from the inside. Left openings are not allowed anyway. But image search helps very quickly.
And why it can lead to problems if opened from the inside, I cannot tell you. Sloppy work, poor system, ... In any case, it caused a weak point during the Blower Door test for two acquaintances.

Why should you do that?

Why not? If someone likes the extremely ugly plastic covers of the opening, fine. I frankly do not find them nice.

My question was quite different though. I will try to phrase it differently. Maybe I expressed myself incorrectly.
It concerns the difference between the two roller shutter systems, mounted on top of the window or in front of the window. One with a masonry box and one without. If masonry box, only those that are not visible as such from the inside and therefore have an inspection opening on the outside.

Hello,

You apparently have never seen such a wall box.

Well, yes, but that was many, many years ago; honestly, I did not think that these systems would still find buyers.

Rhenish greetings

Ok. I see them as an innovation. But one can be mistaken like that. Let's see what the sellers want to sell to us.

So I also have roller shutters with the box on top and an inspection opening to the inside... no problems with the tightness and you can access it anytime.

Box open/insulation out and you can get to the technology right away.

There are also windows with roller shutters/venetian blinds between the panes. Would that be something for you?

Phew, this is once again a super special/extra expensive solution...