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Channel Glazed Systems

Channel glazing is a method of window glazing which uses a 'U' shaped aluminium channel with metal or rubbber gaskets to hold the glass in place. Generally where large glass panes are employed they are integrated with an engineered glass fin or a tension truss system or similar.

These systems are face sealed in the field and rely on sealant for weathering performance.

Product Features

  • An extremely versatile product - providing a modern low profile window suite.

  • Seamless incorporation of auto sliders, frameless glass doors etc.

  • Glazing channel can be recessed.

  • Frames and glazing are site installed.

Frame Size

Channel size can vary but is commonly 30-50mm (or engineered to be greater at the head in order to allow for seismic movement).

We recommend using Masterspec 4251TS Commercial Windows when specifying this suite.

Surface Finishing 

  • Polyester powdercoat  - Both standard and special colours available. 
  • Anodised - All anodised colours available - commercial grade 20 micron finish recommended. 
  • PVF2 Flourocarbon finishes - Available on request.

Performance / Testing 

  • AS/NZS1170 (Structural Design Actions) 
  • NZS4223 (Glazing in Buildings) 
  • NZS/AS4284:2008 (Water / Air Pressure/ Air Leakage - Meets and exceeds minimum requirements) 

Maximum Spanning Ability

Thermosash specifically engineers the best suite option for your project taking into consideration span, structural system, and environmental loads (e.g. wind). The spanning ability will vary depending on the above. 

Thermosash Suites are recognized as having the largest spanning systems on the market due to our specific engineering capability and the customised nature of the work we complete.


The standard guarantee is 5 years from the date of practical completion for these products. This covers workmanship and weather tightness, providing the subcontract includes fabrication, installation and glazing of all components.

Downloads Available 

Please go to our CAD Detail resource section