Hello everyone,
thank you very much for the numerous feedbacks. Unfortunately, it is also not clear to us why variant 2 is supposed to be more cost-effective. Since the volume in variant 2 is about 82m3 lower, this results in cost savings of 33K€ in the cost estimate and lower architect fees. Since I was on vacation this week, I was only able to briefly follow up with our architect by phone. Reason for the cost savings: shorter beam, smaller surfaces that need to be plastered,... However, I will follow up again tomorrow and ask for a more detailed cost calculation for both variants.
: I had this idea already too, with 181m3 for the roof we would be at least at 73K€ lower cost estimate and that would put us back in the green...