Milestones
Well-thought-out solutions since 1964
For more than 50 years, Krapf AG has stood for skill and expertise in metal and façade construction.
1964
Company founded by Gebhard Krapf, two employees
1994
Company handover to Heinz Sauter
1997
ISO certification "ISO Norm 9001"
1999
Krapf AG opens new office building and expands production capacity
2000
Krapf AG employs 30 people
2004
Krapf AG develops the air-lux sliding windows system
air-lux is a glass façade system that sits flush with the floor and ceiling and features large-surface windows up to 18m2 and a unique sealing method. With air-lux, Krapf AG offers architects, façade planners and building owners a versatile window façade system that is as architecturally and aesthetically appealing as it is structurally sound.
2005
Major façade construction project in the Waldheimerstrasse housing development in Zug
2006
Production area expanded by 1500 metres
2007
Krapf AG registers air-lux as an international trademark
2009
Major façade construction project at Zollikerberg hospital
2010
Swiss patent granted for air-lux
Minergie module for air-lux sliding windows and tilt-and-turn windows
2010
High-rise façade for University of Applied Sciences St Gallen
The extremely high structural, static and functional requirements for the window types and architecture required Krapf AG to develop a new solution specifically for this project. A total of 912 room-high box-type windows with ventilation sashes and two large skylights bring light into the studio rooms.
2012
Krapf AG launches air-lux "connect", fusion of aluminium with wood or bronze
Major façade construction project in Paradiso apartment complex, Lugano
2013
"air-lux connect" wins AIT Innovation Prize Bau 2013 in Munich
2013
High-rise façade with air-lux on the Baarerstrasse in Zug
The first high-rise residential building in Switzerland to use a sliding casement façade. Krapf AG creates a façade solution using a combined glass and natural stone façade including external shading. Height: 56 metres. 18 floors fitted with 136 horizontal, pneumatically-sealed sliding air-lux windows.
2014
High-rise façade with air-lux, One-One, Cham
First project in China
2015
US patent granted for air-lux
2015
air-lux sliding windows as a special solution
Zurich area: 350 automatic air-lux sliding casement windows installed in the exposed concrete façade (picture frames). Innovative and urban multi-use of a 12-storey, 40-metre high-rise building. Customised architectural and technical design developed by Krapf AG for the architects and builders.
European patent granted for air-lux
air-lux brand registered with China Trademark Office (TMO)