ROOFTOP AIR EXTRACTION SYSTEM

Roof Ventilators

A roof-mounted turbine that uses moving air to continuously pull hot, stale air and fumes out of a building, without drawing any electricity to do it.

  • Runs on wind energy alone
  • Corrosion-resistant aluminium or steel build
  • Turbo and static configurations
  • Sheds, warehouses and PEB roofs
Close-up of a roof ventilator turbine head

QUICK PRODUCT SUMMARY

Roof Ventilators at a Glance

A roof ventilator sits on a mounted base over a roof opening, with a curved-blade turbine head exposed to the outside air. As wind passes over the blades, the head spins and draws air out from directly beneath it, creating continuous suction that pulls hot, stale air and fumes out of the building below — with no motor, wiring or running cost involved.

Construction
Aluminium or stainless steel turbine on a mounted base
Options
Wind-driven turbo and static configurations
Applications
Industrial sheds, warehouses and PEB roofs
Also known as: Turbo Ventilator • Wind-Driven Turbine • Roof Extractor • Eco Ventilator

PERFORMANCE ADVANTAGES

Why Roof Ventilators Are Specified

Roof ventilators are selected for buildings that generate heat, fumes or moisture and need continuous air movement without adding to the electricity bill. Their suitability always depends on roof area, internal heat load and local wind conditions.

Zero Running Cost

Wind-driven models need no electrical connection, wiring or motor, so ventilation continues at no ongoing power cost.

Continuous Heat Extraction

Constant suction removes hot air that collects near the roofline, helping lower indoor temperatures in occupied and process areas.

Fume and Moisture Removal

Continuous air extraction helps clear airborne fumes, dust and condensation, supporting a cleaner working environment below.

Corrosion-Resistant Build

Aluminium alloy and stainless steel construction with protective coatings resist rust across outdoor rooftop exposure.

Low Maintenance

Sealed, permanently lubricated bearings and a simple moving-parts design keep servicing needs to a minimum over the unit's life.

Quick Installation

Fits directly over a standard roof opening on metal, tiled or PEB roofing without major structural modification.

HOW IT WORKS

How a Turbo Ventilator Moves Air Without Power

A wind-driven ventilator turns ordinary moving air into continuous suction, extracting hot air from inside the building the whole time it is spinning.

01

Wind Strikes the Curved Blades

Outside air passing over the turbine's angled, curved blades causes the head to begin rotating — even light breezes are enough to start it turning.

02

Rotation Creates Suction

As the head spins, it draws air out from directly beneath it through the roof opening, creating a continuous low-pressure pull inside the building.

03

Hot Air and Fumes Are Exhausted

Hot, stale air near the roofline is drawn out and expelled, while cooler fresh air is pulled in through doors and vents lower down to replace it.

APPLICATION AREAS

Where Roof Ventilators Are Used

Roof ventilators are used wherever a building generates heat, fumes or moisture faster than natural airflow alone can clear it.

Roof ventilators installed on an industrial factory shed

Industrial

Factories and Process Sheds

Removes process heat, fumes and airborne dust generated by manufacturing and processing equipment on the shop floor.

Roof ventilators on a warehouse rooftop

Warehousing

Warehouses and Storage Facilities

Clears trapped heat that builds up under large roof areas, helping protect stored goods and improve working conditions.

Roof ventilators installed on a PEB structure roof

PEB

PEB Sheds and Structures

Commonly fitted along the roof ridge of pre-engineered buildings to ventilate large, open-span interiors.

Roof ventilator above a boiler or plant room

Plant Rooms

Boiler and Plant Rooms

Extracts residual heat around boilers, compressors and other equipment that raise ambient temperature in enclosed plant areas.

TYPE COMPARISON

Choosing the Right Ventilator Type

The right type depends on how much natural wind the site gets and whether ventilation needs to keep working on still days.

TypeHow It RunsBest Suited For
Wind-Driven TurboSpins freely using ambient wind, no power neededSites with consistent natural airflow
Static VentilatorNo moving parts, relies on natural convectionLow-maintenance, low-wind locations
Powered VentilatorElectric motor with optional wind-assistAreas needing guaranteed extraction on still days

Note: exact model and neck diameter should be selected based on roof area, internal heat load and site wind data.

SIZE AND MATERIAL

Size and Material Options

Neck diameter and material grade should be matched to the roof opening, exhaust requirement and exposure conditions at the site.

Neck Diameter Range

Commonly available from about 6 to 24 inches — larger diameters extract more air per unit but need more roof clearance.

Aluminium Alloy Build

Lightweight and naturally corrosion-resistant, often finished with a fluorocarbon or polyester coating for added protection.

Stainless Steel Build

Higher strength and durability for demanding industrial or coastal sites where extra corrosion resistance is needed.

Bearing and Shaft

Sealed, permanently lubricated bearings with a stainless steel centre shaft support smooth, low-friction rotation over time.

TECHNICAL INFORMATION

Roof Ventilator Specifications

The exact specification varies by neck diameter, material and turbine design. Refer to the current technical datasheet for final project selection.

Turbine materialAluminium alloy or stainless steel
Base materialGalvanized steel or aluminium mounting base
TypeWind-driven turbo, static or powered
Neck diameterApproximately 6 to 24 inches
Bearing typeSealed, permanently lubricated bearings
Centre shaftStainless steel
FinishFluorocarbon or polyester powder coating
Exhaust capacityRefer to current product datasheet, by diameter
MountingFixed over a roof opening on a sealed base
Power requirementNone for wind-driven models
Typical applicationsIndustrial sheds, warehouses and PEB roofs
Installation methodRoof-mounted over a cut opening with flashing