House construction with TuC and changes - Your opinion?

Yes, I thought so too. There will still be inquiries, but it won't change anything, but it's hardly believable.

Of course, you can also live, for example, with a plastic front door without a window and with an insert panel...

You can even live very well with that. An aluminum door has no practical advantage.

Fireplace.... do you really need that? You suffocate in such a modern house.

You expressed that excellently. In practice, that means: fireplace on, window open. Not energetically sensible anymore, but wonderful when you turn on the fireplace.

@ Windows: Plastic or anthracite - I would not recommend combining them.

I am very interested in a justification. We just got such windows. Aesthetically, they are great for now. No experience yet.

Maybe everything is not as high-quality and durable as in other, significantly more expensive houses - but that is okay.

How durable things are in a house has much to do with how they are treated. With mindful people, apparently poorly built things last better than the ultra-sturdy expensive parts with careless people.

: It seems you are on a good path. A thought on the topic of gas or heat pump: gas will be the more cost-efficient option—just as nordlys writes. I have children and wish to have grandchildren once. I would feel uncomfortable building a house today with a fossil energy source.

I have children and wish to have grandchildren one day. I would feel uncomfortable building a house today using fossil fuels.

Hm, energy is all we will need in our colder regions. And if we want to do everything electrically (heating, driving, cooling), we will not be able to produce the electricity purely from renewable sources, especially since power lines and offshore wind farms are also opposed by the Greens. Should we then use nuclear power instead of fossil fuels? I think you cannot get out of this dilemma. Stopping global warming is only possible if overpopulation is stopped. My not unfounded opinion on this. Karsten

Yes, Karsten, your view is very well justified. Maybe I am an idealist or simply someone who occasionally calls for taking action oneself. If we stop buying fossil fuels and the electricity generated from them, that supports regenerative technology. This is being developed here. The faster it becomes affordable, the sooner it is possible to supply countries with exponentially growing populations and thus energy demand, so that their supply is properly set up from the start. For example, a lot is happening in the field of regenerative energy in Africa. Thus, the sum of contributions from individuals is quite meaningful. My own contribution is like a drop in the ocean. Analogy: Some people repeatedly went out peacefully in the summer of 1989. Others said it was pointless anyway. The some accomplished a lot for everyone; the wall fell. An individual would have been laughed at.

hampshire, that is also correct.

I am keenly interested in a justification.

This is probably related to the different expansion affecting the plastic of the frame profile and its steel core. The dark foil is thin and lies directly on the plastic, which heats up similarly quickly as if the foil, which is structurally more similar to it anyway, were a homogeneous part of it. The steel core, which is not exposed to the sun, experiences little of the heating in the hollow chamber profile, which leads to stresses in the overall construction of the profile. With light-colored plastic surfaces, the relevance of the different expansion behaviors is weaker, and it is correspondingly more often successful that the stresses remain below the cracking threshold. I read so much about cracking dark plastic windows in forums that, in my impression, this undesirable effect occurs often – on the other hand, I have not yet found such a large number of cases that I could fairly seriously speculate why some owners of dark plastic windows credibly assure that they have not experienced it in their own house.