Solid house: Which stone / brick?

You have to know that unfilled bricks must have a significantly higher proportion of foamed air to achieve the same thermal insulation. Therefore, the choice fell on a stone filled with mineral wool, namely the Unipor Coriso W08. This has the density of a 10 cm brick and additionally significantly better values in sound insulation (45 dB instead of 42 dB), which should not be overlooked. So even in the unlikely event that one day the mineral wool inside the brick settles, you still have a W10 (equivalent to T10), which would still provide decent thermal insulation.

I don't know how reviving a very old thread is viewed here in the forum. But since the thread title is still relevant and before I create a new one, I want to address my question with this quote right away.

Does the insulation material (insulation wool) in the Unipor Coriso really settle over time?
If yes, is this also the case with the brick competitor Poroton and their insulation material (Poroton)?

With the classic bricks, there are only the two major players:
a) Poroton as an insulating material in POROTON
b) Mineral wool as an insulating material in Unipor
or have I overlooked one?

I don't know how it is seen here in the forum that I am reviving a very old thread.

Close, but you only got second place at nine years and one month. The winner is with ten years and one day!

When it comes to classic bricks, there are only the two big players: a) Poroton as insulation material with POROTON b) mineral wool as insulation material with Unipor or did I overlook one?

Regardless of the manufacturer—and I have no idea which providers have their own recipes and which produce under license—porous bricks are generally not "classic" bricks: classic bricks would be solid bricks and also without air inclusions, moreover in small formats. They still exist, but only for special applications (support pillars, lintel bearings, and the like); otherwise, they are no longer used as wall-building materials in new constructions.

Does the insulation material (insulation wool) in Unipor Coriso really settle over time?

Specifically regarding a single product, I cannot answer that. In general, though, I find it physically hard to imagine: loose fill would probably settle over time, but insulation wool in my opinion only negligibly so—after all, there's also the spring stiffness of the air column, and not to forget the extreme "long-stroke" nature of the chambers. I don't think much of these creamslices, but generally nothing of the usually common nonsense when comparing properties of individual building materials. Such discussions are usually full of simplistic physics until the doctor comes.

The exact opposite is true. Mineral wool settles, [Perlite] does not.

The exact opposite is true. Mineral wool settles, perlite does not.

Have you ever cut open a wall after a few years and found that out?

Have you ever cut through a wall after a few years and found that out?

Have you ever cut through a wall and proven the opposite?
Did I claim that mineral wool collapses in masonry? No, I did not. I responded to 11ant's physical principle, which is simply wrong.

Mineral wool collapses when wet. You can read that in every processing instruction of such a product. Whether such damage regularly occurs in masonry, we cannot know here. The physical property, however, exists, unlike with perlite, so 11ant's statement is wrong.

You have not quoted or referred to anything, so the original poster will relate your statement to their question, hence my counter-question.

I consider the discussion to be completely overrated. Whether these "damages" occur or not. Apart from the claim, I have never read or heard of any damage. I have also never read or heard of a case where a filled brick was installed and after years had increasing heating costs that could be attributed to poorly insulating walls... yes, I also cannot prove the opposite there. One should keep things in perspective in the stone choice discussion. If one has special expectations, properties may differ in detail. For the builder who now has no special requirements and simply wants to have a "reasonable" little house built, the choice should depend more on price/performance, regional factors, and above all the installer.

...but we can also point the original poster to the breathability and diffusion openness of various materials to confuse them even more.