Recommendation for facade insulation material

The post actually shows exactly what is not an option for me, namely an ETICS on the outside of the stone and then plastered. From this point of view, one actually wants to avoid exactly that, achieving the thermal insulation (through the stone) and plastering the stone both inside and outside.

We have decided against insulating our old building. And that quite deliberately. We preferred to invest in other things like an insulated roof and a new heating system. Insulating the wall would simply never have paid off.

We decided against insulating our old building. And that was a conscious decision. We preferred to invest in other things like an insulated roof and a new heating system. Insulating the wall simply would never have paid off.

Well, with an old building, I can still accept this comparison as plausible, and exterior insulation isn't quite what it seems either. At least that's what you hear or read from some answers, but I personally don't know. With a new building, however, the whole thing looks different again.

Hello,

we live in an existing building and now want to carry out energy-efficient renovations. Unfortunately, due to the reporting on Styrofoam for facade insulation and the flood of information about all kinds of insulation materials, we are confused. We simply want to insulate our exterior walls...

Therefore, I wanted to ask around what experiences you have had with facade insulation and different materials? Everything from deciding on the material and installation to living in the insulated house...

I would be glad if someone shares their experiences here.

Thanks in advance

Basically, you should first get support from an energy consultant. For a layperson, the flood of information is too large to be able to decide on their own. About the insulation materials themselves:

EPS (expanded polystyrene foam, Styrofoam) offers the best price-performance ratio of all insulating materials and thus pays off the quickest. There are some reservations about EPS that I personally do not share. Arguments such as the lack of vapor diffusion can be quickly refuted by listing material-specific characteristic values. Objectively, in my opinion, there is little against EPS.

Mineral wool/stone wool: Slightly more expensive than EPS. An advantage often cited is higher water vapor diffusion, although I do not understand what this would be good for.

Wood wool boards: Even more expensive than mineral wool with poorer insulation values. Very sensitive to moisture, requires meticulous detailing.

I have to be honest that I am not very familiar with other, partly very exotic insulation materials.

Jupp EPS is not as bad as it is always described... they are just different camps and people are pushing against each other... just like in politics...

You simply have to look at the matter objectively...

I saw narrow, perlite-filled bricks on the website of a Poroton brick manufacturer that can be used as insulation on the inside or outside. Whether that is something useful and what it costs, I don't know, I haven't looked into it that closely. You have to google it.