KWD92 UT+ is the first interchangeable and customisable certified Passive House window. A pioneering new platform that redefines building design, it delivers faster fabrication and contains significantly less foam by volume than comparable high performing window systems. Resulting in a fully tested sustainable solution that provides the ultimate in thermal performance.

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  • 70% less foam by volume than comparable high-performance windows
  • With an innovative corner assembly, and preset gaskets fabrication is up to 30% faster than Kawneer’s current range.
  • Fully integrated with the Kawneer AA®100 HI Passive House certified curtain wall system


The KWD92 UT+ Tilturn Window is Kawneer’s next generation premium window suite and offers exceptional weather and thermal performance. Designed to achieve Passive House certified performance and improved fabrication times using the latest hardware innovations, the KWD92 UT+ uses a multi chamber thermal break core and Kawneer’s patented reflex technology, which ensures market leading thermal performance as low as 0.6 W/m2K being met without the need for additional foam inserts in the thermal chambers.

Offering a modular approach to ensure complete design flexibility, the KWD92 UT+ is fully integrated with the Kawneer AA®100 HI Passive House certified curtain wall system and is suitable for installation in low or high-rise buildings for new build or refurbishment projects. Capable of up to 180kg and glazing up to 65mm, high performance and/or security glass applications can easily be accommodated without additional reinforcement or fabrication.

Designed with sustainability in mind, the gaskets are made from recyclable TPE (thermoplastic elastomers), and there is also the option to specify our low carbon billet which contains a minimum of 50% post-consumer scrap.

Product Features and Benefits

  • Acoustic performance in accordance with EN 10140
  • Advanced patented thermal break technology
  • Pre-set gaskets available for ease of fabrication
  • TPE gaskets and bead glazing arrangement allow infill thicknesses of 24-65mm
  • Mechanical corner cleats with a choice of jointing methods to suit individual fabricators
  • Box beads for enhanced security
  • Concealed hardware
  • Choice of muntins and coupling mullion profiles
  • Option for concealed vent
  • Suited handles available for Tilturn, Turn Before Tilt, Turn Only, Bottom Hung and French Casement
  • KWD92 UT+ specific hardware and accessories
  • Option for concealed drainage
  • Extensive range of polyester powder coatings
  • Extensive range of anodised finishes
  • Single and dual colour options available


Drained and ventilated weathering, independently tested weather performance:
• Air Permeability to EN 12207 (Class 4)
• Watertightness to EN 12208 (Class 9A)
• Resistance to Wind to EN 12210 (Class C5)


The KWD92 UT+ has been independently tested by notified/ approved bodies to:
• EN 1627 RC2*
• PAS 24

* Does not refer to standard hardware, security hardware required

KWD92 UT+ Flyer
Kawneer’s BIM Models are downloadable in the Revit format and also available on request as IFC files.

Our BIM Models provide users with 3D images of the products as well as the critical COBIE data to provide guidance through the whole design and construction process.