Turbo Ventilators

Wind-driven ventilators for effective heat and air exhaust.

Inside an industrial shed or warehouse with a metal roof, heat builds fast. Without adequate ventilation, internal temperatures can climb 10°C to 15°C above ambient – creating uncomfortable working conditions, accelerating equipment wear, and driving up energy costs for mechanical cooling systems. Turbo Ventilators from Astal Roofing Industries offer a direct, proven solution: wind-powered roof ventilators that exhaust hot air, fumes, and moisture from industrial buildings continuously – with zero electricity consumption, zero moving-part maintenance, and zero noise. A one-time installation that pays for itself in reduced cooling costs and improved working conditions year after year.

What Are Turbo Ventilators?

Turbo Ventilators – also known as wind-driven roof ventilators or whirlybird ventilators – are rotary exhaust units installed on the roof of industrial and commercial buildings to provide continuous natural ventilation. The ventilator’s turbine blades are designed to rotate in response to even low wind speeds, creating a centrifugal suction effect that draws hot air, humidity, dust, and airborne contaminants up through the roof and out of the building – replacing them with cooler outside air through eaves, louvres, or other inlet points.

Unlike powered exhaust fans that consume electricity around the clock, turbo ventilators are entirely wind-driven – operating 24 hours a day, 365 days a year, at zero running cost. For facility managers and procurement heads evaluating ventilation solutions for large industrial floor areas, the energy saving and maintenance-free operation case is compelling and well-proven across thousands of industrial installations across India.

Key Benefits of Installing Turbo Ventilators

Reduced Internal Temperature

Continuously exhausts trapped hot air from the roof space – reducing internal temperatures by up to 10–15°C and making the working environment significantly more comfortable for factory and warehouse staff.

Zero Energy Consumption

Entirely wind-powered – no electricity required. Once installed, turbo ventilators operate continuously with no running cost, delivering immediate and ongoing savings on energy bills compared to powered exhaust systems.

Maintenance-Free Operation

No motors, no electrical components, no belts or bearings to service. The rotating turbine assembly is self-lubricating and designed for decades of continuous operation without scheduled maintenance or replacement parts.

Silent Operation

The precision-balanced turbine blades rotate smoothly and silently – with no vibration, no motor noise, and no operational sound – making them suitable for noise-sensitive manufacturing and processing environments.

Key Features & Technical Specifications

Aluminium & Stainless Steel Construction

Available in marine-grade aluminium alloy – lightweight, corrosion-resistant, and ideal for standard industrial and commercial applications – and in stainless steel for installations in coastal, chemical, or highly corrosive environments where maximum material durability is required across the full service life of the ventilator.

Energy-Efficient - Zero Running Cost

Powered entirely by natural wind – no electricity connection, no wiring, and no ongoing energy cost from the moment of installation. The wind-driven turbine operates at wind speeds as low as 0.5 m/s, ensuring effective ventilation even on low-wind days, and increases exhaust rate proportionally as wind speed rises.

Maintenance-Free by Design

The sealed bearing assembly and corrosion-resistant material construction eliminate the need for lubrication, servicing, or scheduled replacement – delivering truly hands-off operation that reduces facility management overhead and eliminates unplanned downtime from ventilation system failures.

Silent Operation at All Wind Speeds

Precision-balanced turbine blades and a vibration-dampened mounting base ensure smooth, quiet rotation at all wind speeds – with no operational noise that could affect the working environment or violate noise compliance requirements at industrial facilities.

Effective Hot Air & Fume Exhaust

The rotating turbine creates a continuous low-pressure zone at the roofline that draws hot air, moisture, smoke, chemical fumes, and airborne particulates upward and out of the building – improving indoor air quality and reducing condensation on roof structures, which extends the lifespan of the building envelope significantly.

Available in Multiple Diameters

Supplied in a range of turbine diameters – from small units for light ventilation requirements to large-diameter high-volume units for heavy industrial applications with significant heat or fume loads – ensuring the correct ventilation capacity is specified for every building size and application type.

Applications

Factories & Manufacturing Plants

Exhausts process heat, machine emissions, welding fumes, and chemical vapours from factory floors – improving air quality, protecting workers, and reducing the load on air conditioning and mechanical ventilation systems.

Warehouses & Distribution Centres

Prevents heat build-up in large-span storage buildings – protecting temperature-sensitive stock, maintaining comfortable working conditions for warehouse staff, and reducing cooling energy costs across large roof areas.

Industrial Sheds & Agricultural Structures

Provides effective natural ventilation in open-bay industrial sheds, agricultural storage facilities, and rural structures – where the simplicity and zero-running-cost of wind-powered ventilation is particularly valued.

Why Source Turbo Ventilators from Astal Roofing?

At Astal Roofing Industries, Turbo Ventilators are manufactured and supplied as part of our complete industrial roofing system – designed to integrate directly with our roofing sheet profiles and accessories for a clean, weatherproof installation that requires no additional flashing or bespoke detailing. Our ventilators are installed through the roofing sheet using a purpose-made base plate that seals against the sheet profile – preventing water ingress at the penetration point while maintaining the full structural and weatherproofing integrity of the roof.

We supply turbo ventilators to EPC contractors, facility managers, and project procurement teams across India – with specification support, ventilation rate calculations, and product data sheets available to assist with unit sizing and layout planning for buildings of all sizes.