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​​

​​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.