Ventec AOV OSTRO 1m2 GFA Natural Smoke Ventilator
The Ventec AOV OSTRO 1m² GFA Natural Smoke Ventilator is a roof-mounted automatic opening vent designed for natural smoke and heat exhaust ventilation in commercial and residential buildings.
Ventec AOV OSTRO 1m2 GFA Natural Smoke Ventilator
Ventec AOV OSTRO
Certified to BS EN 12101-2 for natural smoke and heat exhaust ventilation. 140° opening angle delivers 1.06m² geometric free area for stairwell and corridor applications.
Why specify the Ventec AOV OSTRO
Smoke Ventilation. Certified to BS EN 12101-2 for natural smoke and heat exhaust ventilation. 140° opening angle delivers 1.06m² geometric free area for stairwell and corridor applications.
Document L Compliant. Meets Approved Document L thermal performance requirements as standard, ensuring compliance with energy efficiency regulations without additional components.
Versatile Application. Suitable for flat and pitched roofs across production halls, logistics centres, public buildings, commercial properties and residential developments.
Configuration options
1.06m² GFA (Standard). Standard in-stock size with 1100mm x 1100mm structural opening. Opal 10mm polycarbonate lid. Galvanised steel base with 200mm upstand height.
Custom Sizes (Bespoke). Non-standard sizes available on request. Alternative lid options include clear polycarbonate, dome options and sandwich panel configurations.
Technical Specifications
Technical Specifications
| Specification | Detail |
|---|---|
| Structural Opening | 1100mm(W) x 1100mm(L) |
| Opening | 140° |
| Geometric Free Area | 1.06m² |
| Voltage | 24v |
| Lid Finish | Opal Polycarbonate |
| Base Height | 200mm |
| Roof Access | No |
| Document L compliant | Yes |
| Opening angle | 140° |
| Geometric free area (GFA) | 1.06m² |
| Aerodynamic free area (Aa) | 0.74m² |
| U-Value | 2.92 W/m²K |
| Snow Load | SL 250 |
| Wind Load | WL 1500 |
| High temperature resistance | B 300 (300°C) |
| Low temperature resistance | −25°C |
| Operational reliability (smoke) | Re 50 |
| Operational reliability (daily) | Re 10000 |
| Opening Time | < 60 seconds |
| Operating Voltage | 24Vdc |
| Current consumption | 1.6 amps |
| Cable | 2 core + earth |
| Base Material | Galvanised steel |
| Base insulation | 30mm PIR panel |
| Flange width | 230mm all round |
| Flange drip cap | 50mm |
| Certification | BS EN 12101-2 |
| Thermal compliance | Approved Document L |
| GFA | up to 2.5m² |
| Single-Leaf | Roof 140° opening |
| Lid Options | Poly, insulated or dome |
| Compliance | Approved Document L |
| Maximum Opening Angle | 140° |
| Resistance Temp High | B 300 (300°C) |
| Cable Cores | 2 Core + Earth |
| Lid | 10mm opal polycarbonate (standard) |
| Roof Pitch | Flat to 15° |
Shipping & Returns
Shipping & Returns
