Indoor sports facilities are among the toughest environments a window will face. The façade has to move large volumes of air for crowds and athletes, let in daylight, keep noise where it belongs, and stand up to balls, players and decades of daily use.
Across completed venues in Queensland and Victoria, architects including BVN, ThomsonAdsett, Warren and Mahoney and Brand Architects have specified Safetyline Jalousie louvre windows to meet those demands. With councils and governments across Australia investing in new courts and halls, here’s what drove their decisions, and what it means for the next generation of sports facilities.
The architect’s view
Victorian practice Brand Architects has specified Safetyline Jalousie across its sports and community projects. In this short video, they explain why durability shapes their choice of window, and the detail they look for.
“The louvre bearer is a really appropriate feature. When there’s balls flying around a sports hall, we know that its low risk and high performing.”
Their reasons echo those of the design teams behind the projects that follow.
1. It ventilates large halls, and seals when it needs to
Sports halls build up heat, moisture and Co2 quickly, and in a large volume, warm air collects at high level unless it has somewhere to go. Under Part F6 of the NCC, rooms can be ventilated naturally or mechanically, so the window specification starts with the ventilation strategy.
Where natural or hybrid ventilation is part of that strategy, operable windows at low and high level create cross-flow and reduce the HVAC energy that Section J regulates. Louvres offer far more free area than awning or casement windows of the same size, and SJ Jalousie provides up to 85% free air when open. In fully mechanical halls the priority flips to sealing. With tested air infiltration of 0.12 L/s·m² when closed, the same window keeps the plant from fighting the façade,and meets Section J’s requirement for openable windows in the envelope to be sealed.
At La Trobe Sports Stadium in Bundoora, Victoria, Warren and Mahoney placed louvres on all four façades to maximise cross-flow through a multi-court hall used by elite and social players.
2. Glazing can sit close to play
On a basketball or netball court, every missed pass tests the glazing. Common responses are tougher glass, glazing above the impact zone or protective screens, but screens cost views, daylight and airflow.
At Nissan Arena in Brisbane, a 5,000-seat venue for elite netball and community sport, ThomsonAdsett placed glass louvres at ground level, right beside the courts. SJ Jalousie’s horizontal louvre bearer covers the glass edges, leaving none exposed inside the building, so a stray ball meets aluminium rather than glass. For glazing this close to play, that detail made it a stronger and safer option.
At La Trobe, Warren and Mahoney took a different route, specifying aluminium louvre blades for a robust, secure façade. The system is impact load tested to 550 kg and has passed Type B windborne debris testing for cyclone regions.
3. It protects people and community assets
Players chase loose balls into walls, and children treat every surface as part of the game. Covered glass edges remove a hazard at court level, and for upper-level viewing areas, mezzanines and elevated openings, SJ Jalousie is NATA-tested to 250 N for fall prevention.
Community venues are also public assets, often in open parkland and empty overnight. Security is built into the window rather than added to it: the bearers are integral to the frame, and the gap between open blades is too narrow for a person to pass through. Where a site needs more protection, stainless steel bars can be inserted inside the bearers, a detail also used in correctional facilities, with no external bars or grilles. A hall can be left open after hours to flush out heat without leaving the building exposed.
4. It works with the architecture
On a building this large, the windows set the rhythm of the elevation, and architects want them to read as part of the design rather than components added to it.
The Gold Coast Sports & Leisure Centre in Carrara shows this at scale. Designed by BVN and purpose-built for the Gold Coast 2018 Commonwealth Games, where it hosted badminton, wrestling and weightlifting, the $105 million centre opened to the community in 2017, more than a year before the Games. Eight years on, it hosts national futsal tournaments, parasport programs and daily community sport, alongside the Gold Coast Suns’ elite training and administration facility.
In its two large halls, louvre windows three metres high and up to 1.4 m wide reduce the vertical lines between banks, suiting the building’s scale. The façade alternates between bays of tinted laminated glass louvres and bays of powder coated aluminium louvres, with frames finished in a custom colour to match the gold-clad exterior.
That choice of blade is a design tool in its own right. Glass brings daylight and views, in laminated, tinted, low-e, acoustic or vacuum insulated options. Aluminium suits zones where privacy, solar control or robustness matter most. Many projects combine the two, as at Nissan Arena and Carrara. Where the façade calls for larger openings, SJ Espacer offers thermally broken, large-format 220 mm glass blades, certified to AS/NZS 4284.
5. It responds to conditions and supports life safety
In a large hall, a façade that relies on staff to open and close it rarely performs as designed. Motorised louvres can respond automatically: rain sensors close them when weather moves in, temperature and humidity sensors open them as the hall heats up or for night purge after an evening session, and smoke detection opens them in a fire event.
At the Gold Coast Sports & Leisure Centre, the louvres that ventilate the halls also form part of the smoke exhaust system. Each frame has fire-rated actuators: in a fire, the smoke control system opens the louvres to bring in fresh air while exhaust fans remove the smoke. Where a project needs certified natural smoke and heat ventilation, SJ Proteger is tested to EN12101-2 Annex G. The rigorous testing provides the assurance of the reliability that the system has been developed and manufactured to deliver the performance necessary to protect both human life and preserve property in the event of a building fire.
6. It manages noise in both directions
Sports halls are loud, and many sit close to neighbours, roads or other facilities. At Nissan Arena, SJ Jalousie’s 33 Rw acoustic rating helped limit traffic noise from the adjacent freeways. At La Trobe, the concern ran the other way: whistles and crowd noise carrying across the wider Sports Park. In both cases, tested sound reduction data was part of the reason the system was specified.
Specifying for the long game
A sports hall’s façade is tested every day it is in use. For the architects behind these venues, the case for Safetyline Jalousie came down to the same things: ventilation that works, glazing that can sit close to play, protection for people and property, and a system that serves the architecture, all backed by test data and Australian manufacturing.
For the bigger picture on ventilation in sports infrastructure, read Designing for Decades.
Working on a sports facility? Access the SJ Resource Library for CAD, specifications and test data, or speak with our team about your project.
Frequently asked questions
Yes, if the glass edges are protected. A horizontal louvre bearer that covers the blade edges leaves no exposed glass inside the building. The system used at Nissan Arena is impact load tested to 550 kg.
Operable louvres at low and high level create cross-flow, drawing in cooler air and releasing warm air that collects at high level. Automated controls adjust the openings to occupancy and weather.
Yes. Motorised louvres can respond to rain, temperature and humidity, and integrate with the building management system.
Yes. Louvres fitted with fire-rated actuators can operate automatically in a fire event. SJ Proteger is tested to EN12101-2 for natural smoke and heat ventilation.
