Answer:
The RF‑TIMBER AWC add-on module does not optimize cross-sections for the serviceability limit state or the fire resistance design. Optimization is only calculated for the ultimate limit state design.
Users must manually adjust the cross-section in RFEM or within the add-on module and can export the cross-section back into RFEM. In either scenario, the model must be rerun in order to calculate the correct internal forces with the adjusted member size.
