Snowy36
2020-06-02 21:48:41
- #1
I just had 2 new conversations with 2 other general contractors --> So, 3 different conversations with GCs. The GCs near here build almost everything in the surrounding new development areas and all have a very good reputation.
All, really all, told me that KfW 55 + without ventilation is not a problem. You just have to ventilate normally and then it's fine. They also all said that it depends on the building material, and if you use brick, you won't have any problems due to the diffusion openness. Moisture release is therefore not a problem, and none of them have ever had issues with mold so far. KfW 70 is also quite similar to KfW 55, they said. In principle, they would all also install KfW 70, but it doesn't make much sense due to the subsidies.
If a ventilation system is used, they all agree on installing it decentralized. Regarding central systems, they all told of the same problem: the ducts look terrible and no one really wants to look inside. What might develop there in a few years is also not really clear yet.
A few decades ago, people also said you could wash clothes by hand...
Yes, you can...
You can also write texts on a typewriter... even publish a book that way! Yes, you can, but you don't have to (anymore)....
How many more pages here... yes, a controlled residential ventilation system is great, mega comfortable...
But you don't have to have it to survive.
Do you have a car? Manual transmission?