‘No frame’ curtain wall system

Kawneer, a manufacturer of architectural aluminium glazing systems, has launched a new version of its successful AA®100 and AA®110 curtain wall products. In addition to a +/- 5mm building expansion joint for its SSG curtain wall variant and a higher weight capacity for its capped option, one of the key enhancements is a concealed vent option within the product, which the manufacturer claims helps to produce a beautiful, finished aesthetic.

Designed specifically for the AA100 and AA110 systems, in either capped or SSG variants, the concealed vent option uses a structurally bonded glazed unit and slim aluminium profiles, allowing Kawneer curtain wall systems to be installed with no visible external framing. This provides designers, specifiers and architects with the flexibility and freedom to create a flush finish to the external façade, while satisfying ventilation requirements for optimised comfort.  

Contemporary building façade design requires larger glass panes, with unobstructed views and increased natural light. The new enhancements result in the AA110 being able to accommodate glazing up to a 50mm depth in the capped system, and withstand a maximum weight capacity of 180kg. Available as a top-hung vent or a parallel opening window, both types can be manually operated or motorised, using neatly concealed chain drives and integrated locking drives to achieve a seamless internal finish.     

The AA110 concealed vent has undergone full CWCT Sequence B testing, as part of a larger curtain wall assembly, with proven weather performance. Furthermore, the window has been RC2 security tested to EN 1627, which is the same classification as the existing AA100 and AA110 curtain wall systems.  

As with the AA100 system, the AA110 offers a range of construction methods, including zone-drainage and mullion-drainage. Also, advanced thermal break technologies provide superior thermal performance that meet and exceed building regulations.  

Gary Ledger, Kawneer’s technical director, said: “Together with our new +/- 5mm SSG expansion joint and increased weight capacity, the concealed vent option subsequently gives architects ultimate design freedom with our enhanced AA®110 curtain wall product by combining exceptional product performance with visual aesthetics and occupancy comfort.” 

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