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Roof Natural Ventilator
1.Product Overview
Roof natural ventilators are passive ventilation devices designed to improve indoor air quality and regulate temperature through wind pressure and thermal buoyancy effects. Longxuan ventilators feature weather-resistant construction, zero energy consumption, and low-maintenance operation, making them ideal for factories, warehouses, and commercial buildings seeking sustainable airflow solutions.
Core Types & Working Principles
1.Wind-Driven Turbine Ventilator
Utilizes external wind to rotate turbine blades, creating negative pressure for continuous exhaust (wind speed ≥0.2m/s).
2.Thermal Draft Ventilator
Relies on temperature difference (ΔT≥5°C) to expel hot air via stack effect, suitable for foundries/steel plants.
3.Hybrid (Wind+Thermal) Model
Combines both principles for 24/7 operation, with stainless steel bearings (service life >10 years).
2.Technical Specifications
|
Parameter |
Performance Data |
|
Ventilation Capacity |
500–5,000 m³/h per unit |
|
Material |
304 SS/FRP/Aluminum (UV-resistant) |
|
Weatherproof Rating |
IP54 (standard) / IP65 (optional) |
|
Operating Temperature |
-40°C to +120°C |
|
Noise Level |
<40 dB(A) at 10m distance |
|
Wind Load Resistance |
Up to 150 km/h |
3.Key Features
✔ Energy-Free Operation – No electricity required, reducing carbon footprint
✔ Patented Blade Design – 30% higher airflow efficiency than conventional models
✔ Modular Installation – Compatible with curved/metal/RC roofs (slope 5°–45°)
✔ Bird/Insect Proof – Integrated stainless steel mesh (optional)
4.Typical Applications
Industrial: Welding shops, textile mills, chemical storage
Agricultural: Livestock barns, grain drying facilities
Commercial: Shopping malls, parking garages
Public: Gymnasiums, underground shelters
Installation & Maintenance
Spacing Guideline: Install 1 unit per 50–80m² roof area
Maintenance: Annual bearing lubrication, debris clearance
Warranty: 5 years on frame, 2 years on rotating components
Lead Time: 7–15 days for standard models, 20 days for customized sizes.
Roof Natural Ventilator Customer Evaluation
Roof Natural Ventilator FAQ
-
How does the Roof Natural Ventilator work?
It operates automatically using indoor-outdoor temperature difference and natural wind, no electricity or manual operation needed.
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Does it work on days with little wind?
Yes, thermal buoyancy from indoor hot air can still drive it to rotate slowly and maintain basic ventilation.
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Is it waterproof and leakproof?
Yes, it adopts a professional waterproof design to prevent rainwater from entering even in heavy rain and strong wind.
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What buildings is it suitable for?
It is widely used in factories, warehouses, workshops, farms, greenhouses, commercial buildings and public venues.
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