Single-family house - Right choice Poroton?

The wall construction plays a role, especially when using ETICS. The properties of the stones are simply not comparable, even if the U-value might be the same.

I also think that you do not understand the difference between thermal insulation and heat storage. For good thermal insulation, a lot of AIR is necessary; for heat storage, a lot of mass. Porous = light stones like Poroton or aerated concrete (Ytong) are light and good thermal insulators. Massive stones like KS (heavy stones) are poor insulators but have a high heat storage capacity. When using ETICS, the heavy stone simply has the advantage because it stabilizes the room temperature; ETICS is responsible for the insulation.

That is why I used aerated concrete (insulation) for the exterior wall and KS (heat storage) for the interior walls.

But as already mentioned before, it is your house and you have to live in it.

I also think that you do not recognize the difference between thermal insulation and heat storage.

Thank you for your contribution. How do you come to that? I am very well aware of the properties. I only said:

For me, a stone with a certain thermal conductivity could also serve as a replacement for an ETICS.

And as I said, I am not yet decided.

Best regards

Still wrong! A stone that is supposed to serve as a replacement for an ETICS should better have NO (or only a very low) thermal conductivity.

As for the rest, basically everything has been said by now. And I would not neglect soundproofing even on a side street, although not to the same extent as on a highway. But lawnmowers, playing children, and garden parties exist everywhere. The garbage collection also comes to the village at six in the morning...

Where did I write something wrong about thermal conductivity??

Thanks for your tips and help and everyone else.

We built our house, for example, with an unfilled T8 Poroton brick of 36.5 cm WITHOUT additional external thermal insulation. Together with the windows, insulation under the floor slab and on the top floor ceiling, and controlled residential ventilation, we achieved a Kfw55 house. If you want to build with Poroton, why bother sticking Styrofoam on the outside?

Hi,

2 things that would personally give me a hard time with Poroton:

- Attaching things to the interior walls --> a disaster
- Lots of insulation and little mass - beware of the negatively charged word - shanty climate.

Best regards Barossi