Wooden facade on the upper floor of the solid house

Hello,

we want to completely clad our upper floor with wood, but the building structure is everywhere aerated concrete. Our first idea was to build up on the 11.5 cm brick with 7.5 cm sand-lime brick or aerated concrete panels and then attach the longitudinal battens (2 cm) and cross battens (2 cm) for the wooden facade (2 cm) to it. Then the wooden facade would connect neatly just in front of the bricks. However, our mason doubts the stability of the panels and has asked the draftsman for an alternative solution. Now the draftsman has created a proposal for us, which looks as follows:

What we do not like at all is that the wall is then recessed compared to the bricks. We would prefer that the profile boards protrude exactly with their width of 2 cm over the bricks. Does anyone have an idea how this problem could be solved as pragmatically and cost-effectively as possible?

You can execute the substructure (vertical battens = ventilation layer) of the facades with 80mm KVH timber or first apply a third layer of battens 40x60mm (cross battens) onto the insulated cladding shell before the facade is constructed as drawn. - You can also increase the thickness of the insulated cladding shell by 4cm and insulate it more. Doubling the 4cm is not the problem,

The challenge is probably to statically verify the entire construction. Although it partly rests on the Steuerberater-Decke EG/OG, it must, of course, be connected to the masonry in the upper area according to static requirements to prevent tipping, shearing, and uplift = wind suction. These forces must be absorbed by the aerated concrete masonry with a proven and approved dowel system.

If your facade boarding, as shown in the renderings, extends to the ground floor on the entrance side, you must maintain a minimum distance of 30cm from the top edge of the property (plinth zone). Bringing the wooden facade down to the ground is not permitted. The ventilation openings at the bottom/top must be backed with a perforated sheet profile/insect screen with a free ventilation cross-section of at least 150cm2/m to be insect-proof.