Motorised Roof Ventilator for Warehouse — Manufacturer & Supplier
Vayuvents Pvt. Ltd. manufactures and supplies motorised roof ventilators for warehouse rooftop heat extraction and fresh air supply across logistics parks, e-commerce distribution centres, cold chain staging areas, and industrial storage warehouses.
Large-span warehouses accumulate heat rapidly during daytime hours from solar gain through the roof, heat from electric forklift charging stations, and heat from goods received from outdoor environments. Without powered roof ventilation, the internal temperature can exceed outdoor ambient by 8 to 12 degrees Celsius, creating uncomfortable and in some cases unsafe conditions for warehouse workers.
Motorised roof ventilators positioned at the roof ridge extract the hottest accumulated air directly from the highest point of the building — the most energy-efficient location for heat extraction. Working in combination with wall-mounted supply fans or natural air inlet louvres, they create a balanced through-flow ventilation system.
Vayuvents has supplied motorised roof ventilators to logistics parks, e-commerce warehouses, and industrial storage facilities across Mumbai, Pune, NCR, and Bengaluru.
How It Works in This Application
Solar Heat Gain
Solar radiation heats the warehouse roof structure, which in turn heats the air immediately below the roof by radiation and convection, creating a hot air layer.
Forklift and Goods Heat
Electric forklift battery charging and heat from goods brought in from hot outdoor environments adds to the internal heat load throughout the working day.
Roof Ventilator Extraction
Motorised roof ventilators positioned at the roof ridge draw the accumulated hot air upward and discharge it to atmosphere above roof level, removing the hot air layer.
Fresh Air Replacement
Fresh ambient air enters through wall louvres or supply fans at dock doors and sidewalls, replacing the exhausted hot air and completing the ventilation cycle.
Recommended Variants
Standard Roof Ventilator
Direct-drive axial impeller for continuous fresh air exhaust from warehouse rooftops — most common warehouse configuration.
Most RecommendedVFD-Controlled Roof Ventilator
Variable speed fan controlled by thermostat for energy-efficient operation — runs at reduced speed when temperature is lower.
Centrifugal Roof Exhaust Fan
Centrifugal impeller for warehouses with internal ductwork connecting storage areas below to the roof exhaust point.
Corrosion-Resistant Roof Ventilator
SS or epoxy-coated GI construction for coastal warehouses and chemical storage facilities.
Technical Specifications
| Parameter | Specification |
|---|---|
| Airflow Capacity | 1,000 to 1,00,000 m3/hr |
| Static Pressure | Up to 40 mmWG |
| Motor Power | 0.18 to 15 kW |
| Throat Diameter | 400 to 1,800 mm |
| Body Material | GI / Aluminium / SS304 |
| Motor Enclosure | IP55 TEFC weatherproof |
| Standards | IS 4894, IS 6966 |
Key Features
- IP55 weatherproof motor for reliable outdoor roof installation in all-weather conditions including monsoon
- Low-profile design minimises roof penetration depth and wind load on warehouse roof structure
- Thermostat-controlled automatic on/off reduces operating hours and power consumption
- Birdproof wire mesh guard prevents nesting in dormant fan throat during night-time off periods
- Integral aluminium rainhood prevents rain ingress into warehouse when fan is stopped
- Large throat diameter options for maximum airflow per roof opening on low-pitch warehouse roofs
- Quick-connect electrical termination for fast installation by warehouse roofing contractors
- Works performance test with measured airflow certificate supplied with every unit
Industries That Use This Application
E-commerce Warehouses
Large ambient-temperature warehouses for e-commerce fulfilment requiring worker comfort ventilation
Logistics & 3PL
Third-party logistics provider warehouses with high forklift traffic and charging station heat
Cold Chain Staging
Loading bay and staging area ventilation in cold chain logistics before and after refrigerated storage
Industrial Storage
Storage of industrial goods, equipment, and raw materials in manufacturing facility warehouses
Agricultural Produce
Ambient storage of grains, pulses, and agricultural produce requiring heat and humidity control
Chemical Warehouses
Chemical raw material storage with vapour dilution requirement from stored goods
Auto Parts Warehousing
Tier-1 auto-component supplier warehouses requiring temperature control for rubber and plastic parts
Corporate Campus
Office campus and IT park material stores and equipment storage facilities
✓ Supply & Support: Vayuvents manufactures motorised roof ventilators for warehouses at our Vasai, Mumbai works. We supply complete units with curb, rainhood, and birdguard ready for roof installation. We have supplied to logistics parks and warehouses of major e-commerce and 3PL operators.
FAQs
The roof ventilator extracts hot air that has accumulated at the highest point of the warehouse ceiling — which can be 8 to 12 degrees Celsius hotter than floor level. Continuous extraction of this hot air layer and replacement with cooler outdoor air maintains a much lower warehouse ambient temperature, improving worker comfort, productivity, and in some cases protecting temperature-sensitive stored goods.
A 10,000 sq m warehouse with 10m height has a volume of 1,00,000 m3. At 10 to 15 air changes per hour, the required exhaust airflow is 10,00,000 to 15,00,000 m3/hr. Depending on the roof ventilator size selected (typically 15,000 to 30,000 m3/hr per unit), this requires 35 to 100 roof ventilators. Vayuvents provides a detailed calculation for your specific warehouse dimensions.
Natural (wind-driven) roof ventilators provide free operation with no running cost but give variable and generally lower airflow. Motorised roof ventilators provide consistent, reliable airflow regardless of wind conditions and are recommended for warehouses with significant heat loads, forklift operations, or where minimum temperature control is required. Vayuvents can supply both types and can advise on the appropriate choice for your warehouse.
Standard GI roof ventilators are not suitable for corrosive chemical vapours. For chemical warehouses, Vayuvents supplies SS304 or epoxy-coated GI roof ventilators with appropriate impeller materials. For highly corrosive vapours (acid fumes), a PP or FRP construction is required. The fan selection must be matched to the specific chemicals stored.
Yes. Vayuvents motorised roof ventilators are supplied with IP55 weatherproof motor enclosures and integral aluminium rain hoods that prevent rain from entering the factory when the fan is running or stopped. The fan is designed for continuous outdoor roof installation and operation in all Indian weather conditions including heavy monsoon rainfall.
The recommended approach is to install motorised roof ventilators for hot air exhaust at the roof ridge, and wall-mounted axial fans or natural louvre openings on the windward wall for fresh air supply. The roof ventilators create negative pressure inside the building that draws in fresh air through the supply openings. Vayuvents can design the complete supply-and-exhaust ventilation system for your warehouse.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share your warehouse dimensions (L x W x H), roof type, number and type of goods stored, and forklift type and quantity. We will calculate the required ventilation rate and provide a complete roof ventilator selection and commercial proposal within 24 hours.
