As an attractive complement for curtain walls the integration sash WICLINE 90SG provides efficient ventilation, if requested also fully automated. This all-glass window gives full options as a projecting top-hung sash or as a parallel outward opening sash and can be integrated flush with the glass pane level in WICTEC 50SG structural glazing curtain walling or in stick systems with exterior pressure profiles. For an optimum thermal insulation WICLINE 90SG can be equipped with double or triple glazing. Using standard glass without glass step leads to an economy of cost and improved safety