How important is the U-value of interior walls?

I understand what you mean, but don't get me wrong... I also didn't feel like dragging the whole story out here. We were basically forced to deal with it because the wrong pallet of bricks was mistakenly delivered, and then we were asked whether we want to keep it or have the others. What do you do in that case? Of course, you deal with it and compare.

I certainly don't want to explain people's craft to them, although it would definitely be appropriate from time to time when I see how sloppy things are on some construction sites. Trust is good, control is better. Especially in construction!

We all pay a lot of money for the dream of a house – so you can also expect that for the money, the result not only fits but turns out very well. Not perfect, but very good! No more and no less my customers expect from me in my job either....

Don't get me wrong, but you obviously have little knowledge of the topic, you "inform" yourself in an internet forum where you get answer x & y from (mostly) laypeople – and then you decide on something that is supposed to stand for the next 100 years or more?

I find this more and more a "dangerous" development – it gets bad when trained craftsmen are then supposed to be taught about the world.

The latter is not directed at you... just wanted to mention that.

sorry but I've rarely read such nonsense. this here is the standard excuse from those who can no longer fool or take customers for fools because of the flow of information on the internet. the mature, reasonably intelligent person can filter the information they get via the internet so that it either makes sense or is nonsense. overall, the information on the internet is much better than is always claimed.
here, for example, it is like this. the heat transfer coefficient on interior walls is completely irrelevant, since the temperature difference between two interior walls approaches zero anyway. it would be different if you wanted to set up a walk-in refrigerator as a room. but that is so special that you should mention it then and you would need a completely different wall anyway.

Yes, you are also a special case who thinks everyone is always fooling around and you naturally always expose it.

And of course, the mature and intelligent person can filter - but this is not about opinions here, rather technical and professional knowledge, which has nothing to do with intelligence or maturity. I would say: classic own goal :D.

That you yourself have built with GU always surprises me :).

: Nice that you understood it. But of course, that requires a certain basic intelligence ;)

And of course, the mature and intelligent person can filter - but this is not about opinions, rather technical-expert knowledge, which has nothing to do with intelligence or maturity. I would say: classic own goal :D.

sorry simply nonsense and pure contrariness. and of course it is about technical expert knowledge, which strangely enough everyone here was able to convey correctly. so where is the problem that the thread starter asked this question here and didn't immediately go to the expensive expert.

Don't get me wrong, but you obviously have little knowledge of the topic, you "inform" yourself in an internet forum where you get answers x & y from (mostly) laypeople - then you decide something that will stand for the next 100 years and more?

what it's about to me: this constant double standard and the constant pointing out that only professionals are professionals and those who have spoon-fed wisdom always are right, while private individuals are fundamentally already stupid and only talk nonsense.

I never said that, but you are so blinded in your manner - what is there left to discuss?

You once tried it, you are doing quite well with it :).

Obviously, you did not understand it...

Honestly Sebastian, I don’t understand your problem right now either.

If you’re already babbling about basic intelligence (sorry, what nonsense!), then you should be able to acknowledge other opinions. Conversely asked: if you don’t rely on collective intelligence, wtf are you doing as an IT guy in a house building forum?? Your playground would actually be Computerbase ;-)

So, I think we agree that none of us are experts. It’s about exchanging experiences. That’s what the forum lives on and everyone who participates. Occasionally getting down from your high horse and seeing the world from others’ perspectives is definitely not a mistake and socially accepted...

And btw, yesterday I discovered some defects from the so-called "trained craftspeople" and pros, which are so blatantly obvious that it made me furious and confirmed my decision to check everything. There are simply not only pros in construction. Some of the self-proclaimed ones are (sorry) just dumb people who either don’t think at all about what they’re doing or even act deliberately that way! I can’t logically explain certain results otherwise.