Between clinker facade and roof: hornets want to settle

So which perforated material would you use? What you call "Fugengitter" is meant for the expansion joints, so 1 cm wide and as high as the brick. And I need something that is about 60 cm wide and can somehow be attached across up there.

Google "Lüftungsband aus Aluminium". It should be available as meter goods. I don't know how to properly fasten it according to technical regulations. I would probably screw it firmly if there is something to screw it to.

I will report here how I solved it then. First of all, many thanks to everyone!

Try insuring yourself with gentle and less labor-intensive means:
- Hang a fake wasp nest under the roof
- They don't like the scent of lemon either

We had problems with wasps last summer, which had made themselves comfortable behind our [Fachwerk]. I taped over the entry gaps with duct tape, it worked great.

We had problems with wasps last summer, which had made themselves comfortable behind our half-timbering. I covered the entry gaps with duct tape, worked great.

Similar problem here too, nothing has really helped in the long term so far. But I like the idea with the tape, I will try it out as well. Thanks! :)