fitting installed to appear invisible

All aluminium-wood window systems (as well as the new wooden window systems HF 82 / HF 82 WD and HF 90 / HF 90 WD) are equipped with a Siegenia-Aubi fitting installed in a completely covered position by - as a standard feature.

All structural components are integrated in the window frame and window leaf from the interior to appear invisible – this enables a consistent appearance left unmarred by fitting components. Custom-designed shapes such as bevelled/round-arch windows and balcony doors with a flat threshold etc. are (as a rule) supplied with a visible flush fitting.