Insulate new construction 36.5 aerated concrete?

There was no price difference between monolithic and KS+ETICS in our case. But even if there was, I would pay a surcharge for monolithic. You simply have peace of mind and that's it. Because of 10 EUR per year...

You won't get rid of the woodpecker with just a bit of thick plaster. You really need a ceramic plate on the outside that the woodpecker cannot penetrate.

And you won't get 1.5 cm plaster as standard either, but rather 2 - 3 mm.

0.17 is 25% less than 0.23 (U-value). But I don't know if it's calculated linearly. It hardly matters anyway because it has no effect. Unlike ventilation losses, window surfaces, and hot water, the exterior wall, roof, floor slab, front door, and roller shutter box are peanuts.

On the topic of KFW55: According to our planning, it would also easily work with a 36.5 cm monolithic wall and a slightly better brick (0.08). Or the standard brick (0.09) with 42.5 cm.

However, the entire KFW55 documents and calculations cost several thousand euros alone according to two providers (one quoted over 4,000 EUR including all calculations, inspections, certificates, etc.). This amount has also been mentioned several times here in the forum.

And I don't see an interest rate advantage with Kfw55!?
2.25% over 20 years?
Market interest rate Commerzbank over 20 years currently with 2% repayment (so less than with KFW) and 80% loan-to-value: 2.08%.

With us, there was no price difference between monolithic and KS+ETICS.

That is of course an argument. So far it looks different here. Are you building with aerated concrete or Poroton?

You won’t get rid of the woodpecker with just a bit of thick plaster. You really need a ceramic plate outside that the woodpecker cannot penetrate.

Simply put: yes you can. Based on the architect’s experience and demonstration on a live object. The woodpecker probably only hammers when the sound fits. And that is already different with thick plaster.

And you don’t get 1.5 cm plaster as standard, but more like 2 - 3 mm.

It depends on what you order. I build with an architect, I define the standard myself. But yes, with BT/GC/GC contractors they usually save on that, as I myself said. They do exactly the opposite of what would be needed to keep an ETICS for a long time.

However, all the KFW55 documents and calculations according to two providers alone cost several thousand euros (over 4,000 EUR with one including all calculations, inspections, proofs, etc.). Such costs have already been mentioned several times here in the forum.

Current offer 2.8k, 50% refund by KfW after deducting. What he would charge for energy saving ordinance I don’t know (you need that guy anyway)

And I don’t see an interest advantage with KFW55!?
2.25% for 20 years?
Commerzbank market interest for 20 years currently with 2% repayment (so less than with KFW) and 80% financing: 2.08%.

Yes, they have just gone up again, I hadn’t seen it yet. They were last at 1.75% for 20 years. But please don’t believe that the 2.08% at Commerzbank are real conditions.
KfW only raises in relation to the market level.

An experience, building with Ytong and plastered monolithically without ETICS was the cheapest in SH. Then came Poroton plus ETICS plus plaster. Then Ytong with facing bricks. So the same house 163, 168, 176. I don't know about KS, KS is dead as a building material in SH in the single-family house segment. Advice from the contractor. If plaster, then always take a good roof overhang. KfW values didn't matter to me.

That is of course an argument. So far it looks different here.
Are you building with aerated concrete or Poroton?

Probably aerated concrete on the outside and calcium silicate bricks for the interior walls.

Yes, they have just gone up again, I hadn’t seen that yet. The 20-year rates were last at 1.75%. But please don’t believe that the 2.08% at Commerzbank are real conditions.
The KfW only raises in relation to the market level.

We have also been for a personal consultation, and back then the interest rate was only minimally worse (less than 0.1 percentage points), but with 12 months without commitment fees. This interest rate, if we had applied on that day, would then also have been fixed.
So it does seem that Commerzbank can actually offer the online conditions. Anything else would be fraud, wouldn’t it?

I don't know about KS, KS is dead as a building material in the single-family house segment in SH.

Since I myself come from S-H and maintain a corresponding circle of acquaintances there, I can only say: No.
What do you think is behind the typical red clinker?

If you have a good rating, I also consider the two percent realistic, if 10 years cost 1.25, just agreed.