Random sampling inspection thermal insulation

Hello everyone!

During the construction start-up meeting, I was informed that I am obliged to have someone come at least twice to inspect the construction, who carries out a so-called "random check of thermal insulation."

Otherwise, the house would not be accepted as KfW55.
Accordingly, the respective financing would also not be approved.

Google is not really helpful.

Could someone please explain this to me?

Who does this? What does it cost me?
Are these fixed costs, similar to a fee schedule? Or is there a way to save on this?

Thanks to you all!

An expert checks whether the thermal insulation has been properly installed to ensure that the requirements for KFW 55 are met.

See also: [Anlage zum Merkblatt zur Kfw - Förderung Programm 153]

What kind of costs should I expect?

What costs should I expect?

Up to EUR 4.5 thousand.

Why didn’t your temporary construction partner explain this to you, or the person who submitted the applications to the KfW?

Rhenish regards

Yes, I ask myself that too. In recent weeks there have been several such blunders, so that I am now really dissatisfied with my [GÜ].