ᐅ New construction KfW 55 house, exterior walls without air cavity

Hello fellow home builders,

I have an urgent question (I’m not a professional).
We are building an almost turnkey single-family house to KfW 55 standard in northern Germany. Our construction specification lists an exterior wall build-up of:

17.5 cm (7 inches) Ytong blocks
11.5 cm (4.5 inches) facing brick
12 cm (5 inches) insulation
3 cm (1 inch) air gap

The bricklayer finished the brickwork this week (it took about 3 weeks). Over the course of these 3 weeks, I noticed there is no air gap between the insulation and the bricks. (The insulation is partially compressed.) When I asked my construction manager, I was told everything is fine and that this method is legitimate.

I really need help from experts.

THANK YOU very much

Possibly the wrong forum, as there are few masonry experts here.
Using brick cladding without an air gap is apparently quite common, but (to my layman’s knowledge) it requires cavity insulation that is suitable for core insulation (permanently water-repellent).
Try searching for "zweisch-mauerwerktcm45-34992.pdf" – Fraunhofer has published something on this topic.
What exactly is written on the insulation bags?

Hello,

Sorry, I thought this was the right topic for insulation.

The packaging said:

Core insulation board KDP 2/V by Ursa.

But where does any possible moisture go?

Thank you

Well – there is still a small gap between the fingers – moisture then runs down along the insulation and exits at the bottom.