Commercial Roof Ventilation for Factories, Warehouses and Industrial Buildings
Trapped heat, stale air and poor airflow can make large buildings uncomfortable and inefficient, not to mention hard to work in! Twista's Australian-made commercial roof ventilators are designed to support better commercial roof ventilation across factories, warehouses, workshops and industrial sites.
Whether you need factory roof ventilation, warehouse roof ventilation or broader industrial roof ventilation, a passive roof-mounted system can help release hot air without adding to your monthly expenses.
At Twista, we offer practical solutions to improve airflow in demanding commercial environments. Read on to learn more about our commercial roof ventilators, or request a quote now!
Commercial Roof Ventilation Problems We Help Solve
Commercial roof ventilators are designed to release trapped hot air and provide consistent passive ventilation across large roof spaces. Here are some of the big problems that Twista commercial roof ventilation helps you to solve:
Hot roof cavities: Commercial roof ventilation helps reduce heat trapped beneath your roof, especially in large metal-roofed buildings exposed to strong sun.
Heat buildup in factories and warehouses: Factory and warehouse roof ventilation can reduce the buildup of hot, stagnant air during warmer months.
Poor airflow in large sheds: Commercial roof ventilators encourage air movement in wide, open buildings where heat can collect overhead.
Moisture and condensation: Improved roof ventilation reduces moisture buildup and enhances airflow in areas where condensation is a concern.
Stale trapped air: Passive roof ventilators help release stale air and encourage fresher air movement through your commercial space.
Heat stress for staff and equipment: By reducing trapped roof heat, commercial ventilators help create a more comfortable environment for workers and equipment.
High reliance on mechanical cooling: Passive ventilation reduces pressure on fans and cooling systems.
Poor ventilation in storage or production areas: Industrial roof ventilation helps support airflow in storage, workshop and production zones.
If you are experiencing any of these problems in your commercial building, get in touch with Twista on to see how our commercial roof ventilators can help!
Why Roof Ventilation Matters in Commercial Buildings
Large commercial buildings absorb and hold significant heat throughout the day. As internal temperatures rise, hot air naturally rises and accumulates in the roof space, where it can become trapped without a clear escape route.
Commercial roof ventilators create a passive exit point at the highest part of the building. As wind passes over the ventilator, hot, stale air is drawn out through the roof, allowing replacement air to enter through suitable intake points below. This improved airflow creates a healthier, more comfortable environment for your workers while also helping to reduce the moisture build-up that causes mould and condensation!
Learn more about how roof ventilation works.
Twista Commercial Roof Ventilators
At Twista, we offer a range of Australian-made roof ventilation options for commercial, factory, warehouse and mixed-use buildings. These ventilators are available in different sizes depending on your roof area, heat load and ventilation goal.
750mm Factory Whirlybird Roof Ventilator
The 750mm Factory Whirlybird is designed for larger roof spaces, including factories, warehouses, production sites, large workshops and industrial buildings.
Its larger size makes it suitable where greater passive airflow is needed across wide metal roof areas.
Suitable roof types: Metal and tile roofs, subject to roof profile and site conditions.
Material: Australian-made marine-grade aluminium with hardened steel ball bearings
Colour options: Available in a wide range of roof colours, including popular Colorbond-style finishes.
Warranty: 15-year structural warranty, conditions apply
Installation options: Supply-only or supplied and fitted in eligible service areas
Browse our 750mm factory whirlbird roof ventilators now.
500mm Commercial Roof Ventilator
The 500mm roof ventilator is a practical option for smaller commercial roofs, workshops, offices, amenities blocks, and retail spaces.
Suitable roof types: Metal and tile roofs, subject to roof profile and site conditions
Material: Australian-made marine-grade aluminium with hardened steel ball bearings
Colour options: Multiple roof colour options available
Warranty: 10-year structural warranty, conditions apply
Installation options: Supply-only or supplied and fitted in eligible service areas
Shop our 500mm commercial roof ventilators!
Suitable for a Wide Range of Commercial Roofs
Our 100% Australian-made commercial roof ventilators can be installed on a wide range of commercial roofs including:
Factories
Warehouses
Workshops
Industrial units
Storage facilities
Agricultural sheds
Commercial kitchens
Retail storage areas
Schools and community buildings
Strata and apartment common areas
Manufacturing facilities
How Many Commercial Roof Ventilators Do You Need?
The number of commercial roof ventilators needed varies from building to building. There is no single answer that suits every factory, warehouse, workshop or industrial roof, because ventilation performance depends on the building's size, shape and conditions!
How many commercial whirlybirds you need will depend on these key factors:
Total Roof Size
Roof Pitch
Roof Type
Building Height
Amount Of Heat Generated Inside
A warehouse used mainly for storage will have different ventilation needs compared with a factory with machinery, production equipment or regular heat build-up.
Existing ventilation also plays an important role. Buildings with open roller doors, wall vents, ridge vents, or other airflow openings require a different layout than buildings with limited air intake. Internal partitions, mezzanine levels, offices, amenities areas and insulated roof sections also affect how air moves through the building.
You also need to consider your desired airflow outcome. Some sites need general heat relief across a large roof space, while others need targeted ventilation over specific work, storage, or production zones.
Send us your roof measurements or building plans, and we can recommend a suitable ventilation layout for your commercial roof!
Passive Ventilation with No Running Costs
One of the best things about Twista commercial roof ventilators is that they release trapped heat from large roof spaces without adding to your electricity costs! They are designed to work with natural wind movement and rising hot air, making them a practical, money-saving option for factories, warehouses, workshops and industrial buildings.
No electricity required
No motor to power
Low maintenance design
Works with wind and rising hot air
Suitable for large roof spaces
Can complement insulation and other cooling systems
Of course, performance will depend on your building design, roof conditions, weather, internal airflow and the number of ventilators installed.
Commercial Whirlybirds vs Powered Roof Ventilation
Commercial whirlybirds and powered roof fans both help move hot, stale air out of roof spaces, but they work in different ways. The right option depends on the building design, roof conditions, heat load and desired airflow outcome.
Check out this comparison table to help you decide which option is best for you:
Are you trying to decide between a whirlybird and solar roof ventilation? Read our blog post to decide which one is right for your building!
100% Australian Made Roof Ventilators
At Twista, we specialise in 100% Australian-made roof ventilators for homes, factories, warehouses, workshops and commercial buildings. With over 30 years of manufacturing experience, we have built a reputation for practical, durable ventilation products designed for tough Australian roof conditions.
When you buy commercial roof ventilators from Twista, you get a reliable whirlybird made for local heat, wind, rain and roofing requirements. Our range includes larger 750mm factory whirlybirds for industrial and warehouse applications, as well as 500mm roof ventilators for smaller commercial sites, amenities buildings, offices and workshops.
Twista supplies roof ventilators across Australia, supporting factories, warehouses and other commercial buildings with high-quality roof ventilators, alongside expert product advice and installation guidance where needed.
Request a Commercial Roof Ventilation Quote
Need roof ventilation for a factory, warehouse, workshop or commercial building? Contact Twista with your roof size, building type and location. We can recommend the best commercial roof ventilators for your site and provide a clear quote for supply-only or installed options across Australia, based on your building needs and layout. Call us now on or use our contact form below!
Commercial Roof Ventilation FAQs
How many whirlybirds does my warehouse need?
The number of whirlybirds your warehouse needs depends on your roof size, internal heat load, ceiling height, building layout and available intake air. Large warehouses need multiple commercial roof ventilators spaced across the roof to create consistent airflow and effectively remove trapped hot air.
Do commercial whirlybirds work on metal roofs?
Yes, they do! Our commercial whirlybirds can be installed on many metal roof types, including common factory and warehouse roofing profiles. Correct flashing, positioning and installation are crucial, though, to achieve a weatherproof finish and reliable ventilation performance.
Can roof ventilators reduce factory heat?
Yes. Factory roof ventilation helps release hot air that builds up near the roof cavity and ceiling space. While passive ventilators don't cool air like air conditioning, they do help reduce trapped heat and improve air movement inside industrial buildings.
Do commercial roof ventilators need electricity?
No. One of the many benefits of Twista commercial roof ventilators is that they are passive, wind-driven systems, so they do not need electricity to operate. This makes them a practical option for ongoing commercial roof ventilation without increasing your monthly costs!
Can Twista install on an operating business site?
Yes, our commercial roof ventilators can be installed while your business continues to operate, depending on site access, roof safety requirements, and the type of work being carried out.
Are commercial roof ventilators waterproof?
When correctly installed with flashing, commercial roof ventilators are designed to provide weather-resistant ventilation for metal roofs and commercial buildings.
What size commercial whirlybird do I need?
The right-sized commercial whirlybird for your building depends on the property size, roof area, heat levels, and ventilation goals. Larger commercial, warehouse and factory buildings may require heavy-duty units or multiple ventilators.
Do you offer supply-only for commercial projects?
Yes. Twista provides supply-only commercial roof ventilators for suitable projects, including commercial, factory, warehouse and industrial roof ventilation applications.
Can roof ventilators help with condensation?
They can! By improving airflow and allowing moist air to escape, roof ventilators can reduce condensation buildup in commercial and industrial buildings.
Have a Question About Commercial Ventilation?
Every commercial building has unique ventilation requirements based on its size, layout, and internal heat load. If you are unsure which system is right for your facility, or if you would like a custom recommendation based on your roof measurements, our team is here to help. Please fill out the form below, and we will get back to you shortly with expert advice tailored to your site.
Alternatively, if you already know exactly what your building needs and you are ready to buy, you can head straight to our online shop to browse the full commercial range of Whirlybirds.