Make a plan for old building insulation - How to proceed?

A certificate for automotive construction is useless on the construction site.

Correct me if I am wrong, but for a burning regulation in ISO or EN it does not matter at all whether it is issued for construction, vehicles, or anything else. Non-combustible is non-combustible, no matter where it burns. The ISO is consistent because the method can be applied to walls and steel. Construction, industry, automotive, shipbuilding, etc. etc. One ISO is enough for all.

Room temperature of the unfinished emptied storage room 14 degrees / humidity 100 percent.
Mold on the walls, water stains, stench, etc.
According to the technical director of the authority, insulation to the outside was not possible because the exterior wall is at the curb on the street and there is partial monument protection.

Room temperature of a finished room after four coatings of the exterior wall with a total thickness of 2.5m and interior walls with 1mm thickness
20 degrees and humidity at 55%
Completion of the room during the inspection was about 3 weeks ago.
Pleasant air climate, no stench, no stains, and no mold.

All rooms are not heated and are not insulated.

If there is no heating, how is a temperature increase possible? Not at all, because physics cannot (at least nowadays) be circumvented.
And 100% relative humidity at 20 degrees is 68.3% relative humidity. A reduction is only possible through ventilation.

Otherwise, everything about the products has already been written. Warming it up does not make it better.

This product description from the attachments already says everything about the product: COLOR, no insulation material

Oh .. I can already see. The datasheet was translated by OpenAi. There are certainly a thousand mistakes in it if you want to nitpick, and it’s not about the description but about the values.
I’m not trying to sell or sugarcoat anything here. I’m sharing my experiences on site and apparently as the only one in this forum who has seen this " Farbe" applied live at all.

Regarding your remark about trying to make me look stupid. Thanks for that.
The room is in the basement and has single-glass steel frame tilt windows. Sunlight and thus heat entering have probably changed the room climate and stored heat, and insulation should probably do that too, and no, nothing has been answered here so far. Not from the advocates’ side and not from those who always drag everything into the negative.

The pro brings no facts and tries to sell, and the only argument of the cons is the eternal “yesterday.” It can’t be what hasn’t happened before.

Small companies develop a product further that already existed and if it works it would be the death for all insulation manufacturers.
They would of course never bring the " Farbe" to the market because they would have to admit to themselves and their customers that they have produced the wrong, environmentally harmful insulation for decades.

I find the topic incredibly fascinating and find it sad how everything is simply talked down categorically in such forums and caught up on formatting errors and bad translations instead of really dealing with the subject.
I am still ultra skeptical but do not categorically reject it because I don’t understand it.

It cannot be what has never been before.

It cannot be what is physically impossible. That is the problem.

And a paint to which beads (microspheres) are added cannot insulate exactly like a vacuum insulation panel.

Please calculate the U-value of the finished wall yourself once. And you will see that the advertised insulating effect simply is not there. It is marginal.