What is the ideal wall construction for Liapor solid elements?

Good day!

For my first house 20 years ago, I implemented the following wall structure: 24 cm inner shell made of Liapor solid wall elements (system Lechner Massivhaus), 6 cm mineral insulation, 4 cm air gap, and 11.5 cm clinker brick. The clinker shell is connected to the inner shell by many wire anchors. After 20 years, I can say that this is probably a very good solution.

In case I build again, I am considering doing it very similarly, only this time I might make the inner shell even thicker. What would be the better overall solution now? 36 cm inner shell, 6 cm insulation, 4 cm air gap, and then the clinker? Or is 36 cm Liapor already enough to just place the clinker in front with only an air gap?

Matthias

36 cm inner shell, 6 cm insulation, 4 cm air gap and then the clinker?

Why even have the air gap? And why do you want to build 36 cm interior walls, you could also increase the insulation to 12 cm!?

I quite like thick walls, they provide a lot of sound insulation and can buffer well during the transitional seasons. Besides, I find it quite difficult to position the windows properly with 12 cm of insulation. How would you do it?

Although I suspect that no moisture gets into this intermediate space, I always assumed that an air gap is common.

Matthias

I quite like thick walls, they provide a lot of sound insulation and can buffer nicely during the transition period.

But the sound mostly comes through the windows. Moreover, a lot of mass also keeps the heat in the house nicely for a long time during summer. There are advantages and disadvantages to everything.

Although I suspect that no moisture gets into this intermediate space, I always assumed that an air gap is usual.

Usual yes, but also common without a ventilation gap.

Besides, I find it quite difficult to properly position the windows with 12 cm insulation. How would you do it?

Ask your architect for the appropriate solution. It is a combination of material and wall thickness, type and thickness of insulation, and of course the type of brick that influences the wall structure ==> and you have to know what energy level you want to achieve.
Therefore, I cannot tell you how I would do it. You can play around with all the parameters and still end up with the same result.

I never got any clear statements from architects back then, so I designed my house myself and then had an architect submit it. He didn’t have to do anything himself. At that time, we solved the window issue by pushing them quite far outwards, and beforehand screwing continuous battens around the outside. But more than 50 percent of the window was still sitting in the inner shell. With 12 cm insulation, the window could potentially be completely within the insulation, basically hanging in the air. And then you would still have to close the gaps both inside and outside.

Maybe I’ll make 42.5 cm walls and put the brick façade directly in front of them. Then the windows would be pushed from the inside up to the slightly recessed bricks and anchored in the inner shell.

Matthias

Besides, I find it quite difficult to position the windows properly with 12 cm insulation.

Google "Hessenkralle", maybe that fits your project.