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Semi Framed Glass Balustrades Vetro

The Unex Systems’ Semi-Frameless Glass Balustrades "Vetro" is glass infill spanning between and glazed into aluminium vertical posts, with no horizontal members. All aluminium can be finished in a range of colours to suit any situation.

This style is commonly used as a balustrade or fence surrounding pool areas, or as a more economical substitute for frameless glass on decks that require a balustrade to complement the view.

Key Features
  • Designed for standard heights up to 1200mm from finished deck level
  • Wide range of finish options – can be powder coated or anodised in all standard NZ colours
  • Standard specifications available for top or side fixing to both Timber and Concrete substrates
  • Specifications for non-standard situations may be provided by Unex Systems upon request
  • Screws together with minimal, if any, welds required
  • Made from 6000 series extruded aluminium alloys
  • Installed only by Authorised Fabricators, available nationwide
  • Post option available for side-fixed situations to conceal screw fixings
  • Designed for wind speeds up to 64m/s (ULS)
  • Glass infill to be Grade A Safety Toughened with a minimum thickness of 10mm
Scope of Use

The Semi-Frameless Glass styles by Unex Systems can be used for both external and internal applications, including decks, balconies, stairways and landings, mezzanine floors, pedestrian gates and pool fences, etc.

Unex Systems’ balustrade brands – namely Aluma, Eclipse Vogue and Arena – are designed to and comply with “A”, “B, E” and “C3” loadings of AS/NZS 1170.1:2002 for residential applications, office and work areas, as well as areas for moving people without obstacles.

There is a wide range of fixing options available to fix to the top and sides of both timber and concrete substrates.  The Unex Systems DKG2 gutter bracket system is designed for membrane decks with gutters and waterproofing considerations.  Site-specific specifications may also be provided upon request for those non-standard situations.

The standard powders used by Unex Systems – the Interpon powder coat range - can be used right down to sea level, provided the care and maintenance instructions are adhered to.

Limitations on Use

The Unex Systems brands designed for residential situations, office and work areas, as well as for areas with moving people – namely Aluma, Eclipse Vogue and Arena – cannot be used for “C1/C2”, “C5” or “D” Loadings. In these applications, Unex Systems recommends the use of the “Extreme Barriers” range which has been specifically developed for these higher loadings in crowd and public situations.  

There are certain risks to consumers associated with glass balustrades where no other form of top rail exists.  Refer to “Glass Requirements” sheet (available for download on the right) and in particular, the “Risk to Consumers” section, for further information and to make an informed decision.

For certain buildings (such as architectural sky rises (over 3 stories high), light commercial and high pollution areas) a higher grade powder coat powder must be specified.  

Statement of Building Code Compliance

Unex Systems has designed its range of balustrade styles in the Aluma, Eclipse Vogue and Arena brands to comply with the B1, B2, E2, F2 and F4 requirements of the NZ Building Code and are suitable for occupancy types “A”, “B,E” and “C3” in accordance with AS/NZS 1170. For more information, please refer to the “NZ Building Code Compliance” document (right).

Producer Statements for all standard specifications can be created online in the registered area of the Unex Systems website. For non-standard situations not covered by our specifications, a site-specific PS1 and specification may be prepared by Unex Systems upon request.

In-Service History

Unex Systems has specialised in designing and manufacturing architectural balustrade systems throughout Australasia and beyond since 1981. 

These semi-frameless styles have been incorporated in Unex’s range since the early 2000s. There have been enhancements made since this time – in particular during 2008, when the building code changed to incorporate AS/NZS1170 which meant that the required balustrades loads effectively doubled. Unex Systems then redesigned a number of their balustrade extrusions to ensure these loads were adequately met.

B1 Structure compliant
B2 Durability compliant
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
F4 Safety from Falling compliant
Safety from Falling
NZ Building Code Compliance
Maintenance Instructions
Typical Specification
Producer Statement
Installation and Operation
Authorised Fabricators
UNEX Authorised Fabricators
Aluma Balustrades Brochure
Eclipse Vogue Balustrades Brochure
Specifiers Balustrade Handbook
UNEX Balustrade Handbook
Colour Range
CAD/PDF Details
Aluma Vetro


Eclipse Vetro


Aluma Vetro – Residential


Eclipse Vetro – Residential


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Wet Timber, Top Fixing, 65mm Ctrs


Dry Timber, Side Fixing, Screws, 45mm Edge Joist


Dry Timber, Side Fixing, Screws, 90mm Edge Joist


Dry Timber, Side Fixing, Screws, 90mm Edge Joist - Residential


Wet Timber, Side Fixing, Screws, 90mm Edge Joist


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Wet Timber, Side Fixing, Screws, 135mm Edge Joist


Dry Timber, DKFB Fixing, Screws, 90mm Edge Joist


Dry Timber, DKG2 Fixing, Screws, 90mm Edge Joist


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Dry Timber, Side Fixing, Bolts


Wet Timber, Side Fixing, Bolts


Concrete, Top Fixing, 90mm Ctrs


Concrete, Top Fixing, 65mm Ctrs


Concrete Masonry, Top Fixing, 90mm Ctrs


Concrete Masonry, Top Fixing, 65mm Ctrs


Concrete Fixing, Post Build into


Concrete, Side Fixing


Concrete, DKG2 Fixing


Concrete Masonry, Side Fixing


UNEX Systems specialise in the design and manufacture of an innovative range of proprietary architectural barrier and screen solutions.

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