ᐅ Energy-efficient house ventilation overlooked

Hello,

I am currently renovating a house with KfW funding. In the KfW application, a decentralized ventilation system with heat recovery was planned. Now, just before completion, it was noticed that this was "forgotten." The energy consultant says it is the construction manager’s fault, and the construction manager/architect says the energy consultant should have noticed it as well...
So, nobody is taking responsibility, but as the client, I now have some problems. Can someone reliably tell me whose responsibility it is to ensure this KfW-relevant component is implemented?

This is your responsibility as the builder and as a recipient of KfW subsidies.
Have you hired anyone to carry out the ventilation? Then hold them accountable.

Dosihris schrieb:
The energy consultant says the construction manager is to blame, and the construction manager/architect says the energy consultant should have noticed this as well...

Actually, all three of them should have noticed this. You just have to have it installed afterwards, so where's the problem?!

You can easily install a decentralized system even after everything is completed. The question is why anyone would see a problem with that at all.

Dosihris schrieb:
Can someone reliably tell me whose responsibility it is to take care of this KfW-relevant component?

That depends! Ultimately, it is certainly the builder’s responsibility. But maybe the builder has signed a contract for work that includes renovation with decentralized ventilation? Then they might be able to insist on contract fulfillment.

However, we don’t know, since you forgot to mention important details...

Thank you for your responses. In the end, it was actually easiest to install these ventilation units afterward. I was worried that the building would need to be scaffolded again for this, but that was not the case. So, that's fine for now.