I already have a preliminary calculation and it states 42.7% heat loss through ventilation, 26.9% through glass, and 10.8% through exterior walls. And that is then based on the heating energy.
Statements like these are exactly your problem, why nobody took you seriously in the green forum. I don’t know whether you are just making up the numbers randomly or completely inventing them for fun, but you only need to google for 5 seconds and you’ll see that your figures are complete nonsense.
42.7% through ventilation... please what? No windows installed? (that would also explain the way too high heat losses through the windows).
With numbers like these, you can save yourself any calculation. Garbage in -> Garbage out. Aside from that, economic efficiency is not my point in the discussion. That a lot doesn’t pay off... absolutely agree with you. By the way, with us aerated concrete was the cheapest option, then sand-lime brick + ETICS, then our current clinker.
What I was getting at:
The blanket badmouthing of ETICS with arguments you read somewhere, which you sell as if it were expert consensus without ever citing any source.
Example:
You claim it is more likely that ETICS has to be renovated earlier than monolithic walls... Strange, the Fraunhofer study says that a higher percentage of damage was found on facades of monolithic systems. For example, they also have significantly more problems with thermal bridges. The ETICS itself lasts forever...
Ominous woodpecker... it definitely counts as facade damage, but almost never occurs. Wow, there are few documented cases on the internet... how can you build an argument on that?
Algae: much has already been said. Not a problem of ETICS facades, clinker and monolithically built buildings have it just as massively. It may appear slightly more often on ETICS, but the surrounding environmental influences matter much more (trees, biotopes, ...)
I understand that emotionally one might dislike plastic, but that is purely an emotional issue and we have discussed that here many times. You would then have to do without yogurt cups, toothbrushes, your couch in the living room, and a thousand other things. You even have direct skin contact with those or ingest them through food. ETICS is just inside the wall, no contact with the outside world...