air-lux is a floor-to-ceiling glass façade system with large-surface sliding windows and a unique sealing concept. The mainte ... nance-free air-lux sliding window system with sliding windows up to 18 m2 was developed by Krapf AG, a leading Swiss metal and façade engineering company and comprehensive provider of quality solutions. With air-lux, Krapf AG offers architects, façade planners and home-builders a versatile window façade system that is as architecturally and aesthetically appealing as it is structurally sound. The patented air-lux pneumatically sealed system not only enables horizontally opening sliding windows, but is also well-suited for special opening types. These include: - Vertical elements from bottom to top/top to bottom - Diagonally positioned, opening windows (skylights) - Diagonally opening sliding elements - Sliding windows that open upwards and/or downwards - Curved systems In all of these special designs, the opening casement windows are 100% airtight because the inflatable seal adapts perfectly to the movable window element and completely plugs the gap. read more