ᐅ A tightly sealed, well-insulated wooden house without plastic? (Vapor barrier)

Alex85 schrieb:
It’s not about the overall airtightness of the building, but about the airtightness of the membrane. Even something as simple as a nail driven in incorrectly, for example, can allow moisture to reach the insulation and the wood.

I believe poor workmanship is generally detrimental and is not limited to timber frame construction.

You can carry out the (initial) blower door test before the installation layer is closed, which allows you to fix any weak points.

You are of course right, but other construction methods do not have a membrane on the masonry that can be damaged, and in case of moisture issues, the defect would “only” need to be fixed and then dried out. With timber frame construction, you have a completely different issue.
So, there is a significantly higher likelihood of occurrence with quite a large impact.
I think that is worth mentioning.

Hello Specki,
have a look at timber frame construction with wooden dowels in Oberstadion.
Best regards
Willy54

Alex85 schrieb:
Timber frame construction

Thanks ^^
I could have thought of that myself.

FHW6Neu schrieb:
Post-and-beam construction in Oberstadion

I’ll take a look at that.

It’s the same for us: Büdenbender house construction. We built near Aachen.

I would recommend talking to a carpenter near you to find out what is possible and, more importantly, what makes sense. We had a similar approach and also didn’t want to use a foil on the walls. We ended up gluing OSB boards and installed an insulation layer in front. In my opinion, this is the best solution (at least for us). You probably won’t be able to avoid using a vapor control layer, especially on the roof. But a professional can give you more information and show you the available options. Regarding airtightness, we achieved an average value of 0.63, although the tension frame wasn’t perfectly installed in the door and window sills had not yet been installed.