Aerated concrete / brick / monolithic construction - who is familiar with it?

OFFTOPIC: Well, I think the OP should decide for themselves whether they need the info or not. But I agree with you, too much redundancy is not good.

However, I dare say that it is hardly avoidable. Not everyone has been around for years and reads every thread. Expecting everyone to have read every thread beforehand to avoid redundancy is impractical.

So, the bad news for you is that you will have to live with information being repeated.

Of course, we could also ask you with every post whether the info has already been posted somewhere or let you approve the post... but do you really want that?!

Of course, we could first ask you with every post whether the information has already been posted somewhere or have you approve the post... but do you really want that?!

*LOL* As for me, I try to avoid repetitions by mentioning threads where I have either already answered a question extensively myself or where others have already provided an explanation that is more broadly applicable beyond the individual case. Furthermore, I like to encourage the use of the search function. And thirdly, I try—though not always successfully—to stay close to the question (here roughly: what is this and can it be done without concern).

So here’s the bad news for you: you will have to live with information being repeated

The bad news would rather be if my information became too redundant – some already find it somewhat so at times.

Thank you for the answers! By the way, I had used the search function but couldn’t find what was suitable for me. However, I am also an absolute layperson and it could be that I simply don’t recognize it. It was already helpful for me to read that there are differences in materials for thermal and sound insulation. Now I simply wrote bricks and realize that that wasn’t correct at all. In the performance description (which hardly says anything by the way, it has to be determined individually) it states:

massive Poroton or limestone masonry according to statics and thermal insulation certificate. To achieve the insulation values according to the Energy Saving Ordinance, Lücking plan bricks W9 or better (according to the energy demand certificate calculation) are installed for the exterior walls. Ceiling above ground floor in reinforced concrete according to static calculation.

Somehow this confuses me... bricks? Poroton? Sand-lime brick? Is what is mentioned good?

In the performance specification (which, by the way, hardly says anything,

You just don't understand it. From the provider's point of view, however, this is a feature of the description, that he understands it better than the customer.

for the exterior walls, the Lücking Planziegel W9 or better (according to the energy demand certificate calculation) will be used. [...] Somehow this confuses me... bricks? Poroton? Sand-lime brick? Is the mentioned one good?

Poroton is a brand name of a manufacturer of porous bricks, Lücking is probably a smaller manufacturer. Plan blocks are stones that no longer rest on a mortar bed a finger’s thickness as in the past, but on a joint as thin as with tiles. For this, they have to be flatter (plan), hence the name. This is independent of the stone material. The stones come in different qualities, classified according to compressive strength (e.g., higher required where ends of window lintels rest) or according to thermal transmittance values. The contractor here assumes W9 and chooses a higher class only where, according to calculation, the Energy Saving Ordinance (= Energy Saving Ordinance) would otherwise not be fulfilled. In the same class, the stones are practically equivalent; he probably buys the Lücking one cheaper than from Wienerberger. Sound insulation is influenced at least as much by construction as by material and furthermore must be distinguished between airborne and impact sound. For every stone, there are both praise singers and gospellers of doom; both tend to drive a layperson crazy rather than make them wise. Take comfort in the fact that no stone is a gold stone and no stone is a disaster stone. They have differences, but ultimately no more than wines. Personally, I find sand-lime brick somewhat more than equivalent, but also pearls before swine if – which would actually require smaller formats than are common today – you do not make exposed masonry with it. Plastered or insulated with panels, both are equally nice.

So I shouldn't worry about the material of the walls but just use whatever he uses? Like the motto: in the end it doesn't matter and everything is kind of the same?

Everything the same regarding the properties of the materials, no. In relation to your specific requirements, maybe.

But only you can clarify that, and it depends, among other things, on the plot of land. For example, on a busier street and a "louder" environment, KS might not be a bad choice because of the higher sound insulation... just as a greatly simplified example. In a normal residential area, it’s probably relatively indifferent.

I also had a hard time at the beginning, spent weeks online like crazy trying to find THE best brick – for all eventualities. But it simply doesn’t exist.

For me, KS was the choice in the end, with mineral wool as ETICS. On the one hand, it’s irrational (because you have solid mass and need a hammer drill for a hole), on the other hand for structural reasons (small plot, large window areas, narrow exterior walls).

Brick was not for ME because I wouldn’t like the red dust when drilling. But it would have been a compromise. Again, not based on logic because irrational.

Aerated concrete (Ytong, for example) would not be for me because the stone is too soft for my taste.

For others, the monolithic construction mentioned in the title is important, meaning the avoidance of additional insulation such as Styrofoam or mineral wool. Certainly, an advantage of this construction method is that later when attaching things to the façade you have less hassle because you are directly in the wall and don’t have to bridge a non-load-bearing insulation layer. But THAT was not as important to ME as the reasons speaking for KS, since there are also solutions for those few cases in my situation. But it’s an individual consideration.

It depends on what is important to you. Regardless of what matters to you, find someone who has experience with the building material of your choice and avoid companies that, for example, always build with KS but now are supposed to use brick for you and don’t really know how to handle it...