Breezway Stronghold

Product Specifications
Maximum Panel Height* 152mm
Maximum Panel Width* 1172mm
Maximum Glass Thickness 6mm
SHGC Range 4.5 - 4.8
Uw Range 0.41 - 0.32
* Subject to individual site conditions and wind loads.
WERS Ratings


The Breezway Stronghold® is available as an optional feature for your Series 525 Louvres to add strength and safety to your building.

Altair Louvre blades are retained by a pin that passes through the clips, bearing and blade. Once installed, the pins cannot be removed without tools and the blades are prevented from being removed from the clips. Pins are visible on the inside/underside of the clips.

The Stronghold System is ideal for multi-storey residential applications and enables bay widths of up to 1200mm. Please refer to the Breezway Product Performance Warranty for more information.

Mechanically Retains Blades

Complies with Fall Prevention requirements where blades are mechanically retained without obstructing outdoor views and minimises the risk of blades being dislodged by impact.

Residential Buildings

Ideal for windows more than 2m above ground or those requiring extra strength with the benefits of natural ventilation and added safety for your family.

Naturally Ventilated Buildings

Energy efficient Altair Louvres with the Stronghold System allow abundant fresh air and natural light to flow into the building to help save on running costs.

Safeguarding Against Falls

Louvre windows with the Stronghold System and with restricted openings comply with the new provisions in the Building Code of Australia for Fall Prevention through openable windows and have passed testing to the Australian Window Association’s industry code of practice “ICP.005 – Protection of Openable Window Testing Specification.” As the glazed area can be opened to allow airflow they can be used to maximise natural ventilation in multi-level applications compared to other window types.


If blades need to be removed from an Altair Stronghold Louvre Window or if broken blades need to be replaced, the removal process requires tools and will destroy certain components requiring replacement prior to new blades being re-installed.

Blade Type Compatibility
Blade Type152mm High102mm High
Annealed glassNN
Toughened glassYY
Straight cut timberNN

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