In the picture I show of the German wall construction at the beginning of the thread, there is a 200 mm rockwool board, but you can choose up to 300 mm. It states that the water vapor diffusion resistance value (my) for the Rockwool board is 1, which apparently means diffusion-open. I saw a house like this being built in 2020 in Germany, and on the roof, they have ventilation pipes, so they must have some form of ventilation.
An advantage of this German wall construction is apparently also that it is fireproof and the facade burns incredibly poorly. It is also stated to be free from formaldehyde, ammonia, and phenol.
As Nikoramus says, it's probably the case that a German wants a stable house, and that means brick walls, and he won't settle for a wooden shed like we Swedes do. But Nikoramus, surely newly built single-family houses in Bavaria aren't built without ventilation. Older single-family houses lack ventilation, yes, but not newly built ones since the year 2000?
In Germany, many houses completely lack ventilation, but they probably haven't been built in the last 20 years.
An advantage of this German wall construction is apparently also that it is fireproof and the facade burns incredibly poorly. It is also stated to be free from formaldehyde, ammonia, and phenol.
As Nikoramus says, it's probably the case that a German wants a stable house, and that means brick walls, and he won't settle for a wooden shed like we Swedes do. But Nikoramus, surely newly built single-family houses in Bavaria aren't built without ventilation. Older single-family houses lack ventilation, yes, but not newly built ones since the year 2000?
In Germany, many houses completely lack ventilation, but they probably haven't been built in the last 20 years.
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Recognize the mindset from the old colleagues in Baden! The heavy houses were also a blessing during the summer heat.N Nikorasu said:
We don't have a vapor barrier when we build like this in Sweden either.useless said:
https://www.isover.se/solutions/yb21-lattbetongvagg-med-oventilerad-putsfasad-rei60-56-58-db
The thing about wood vs stone is probably related to local traditions and the availability of raw materials. Here in Sweden, we have a large wood industry with a very good supply of forests. I don't know how it is in Germany or the rest of continental Europe. However, I do know there is an old joke/saying: On the continent, they name the forests, here we name the clearings.
Stone houses have many advantages generally but are more expensive to build. From a carbon dioxide perspective, concrete is significantly worse than wood.
Stone houses have many advantages generally but are more expensive to build. From a carbon dioxide perspective, concrete is significantly worse than wood.
What I've noticed in Germany when a single-family house is being built, is that there's always a crane there for months, and then you need a crane operator. That can't be cheap. As tommib says, it's likely that in Sweden there is a lot of timber, and they've been using it since ancient times. If you are building with masonry, the cement needs to cure and that delays construction, which costs money. It also seems like every single-family house in Germany is architect-designed, instead of cost-effective standardized single-family houses, like in Sweden.