Questão jurídica principal
Whether the cantonal court violated the appellant's right to be heard in the expert evidence proceedings.
Decisão extraída
The hearing right was not violated as the appellant could comment on the expert report; however, the court failed to adequately explain why it rejected the appellant's technical arguments on insulation.
Fundamentação extraída
Participation in expert instruction is only constitutionally required if indispensable; post-report submissions were sufficient, but the court had to address the material argument on low-frequency sound insulation more expressly.