Ventec AOV Ostro Access 1m2 GFA Natural Smoke Ventilator
The Ventec AOV OSTRO 1.0m² GFA Access Natural Smoke Ventilator is a roof-mounted automatic opening vent with access functionality, designed for natural smoke and heat exhaust ventilation in commercial and residential buildings.
Ventec AOV Ostro Access 1m2 GFA Natural Smoke Ventilator
Ventec AOV OSTRO Access
Combines certified BS EN 12101-2 smoke ventilation with safe roof access capability. Offset actuator design enables full lid opening for maintenance personnel.
Why specify the Ventec AOV OSTRO Access
Smoke Ventilation + Roof Access. Combines certified BS EN 12101-2 smoke ventilation with safe roof access capability. Offset actuator design enables full lid opening for maintenance personnel.
Document L Compliant. U-value of 2.92 W/m²K meets Approved Document L thermal performance requirements. Insulation options allow customisation to project-specific thermal targets.
Versatile Application. Suitable for flat and pitched roofs up to 15° 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. 10mm opal polycarbonate lid. 30mm PIR insulated galvanised steel base. Weight approx. 100 kg.
Custom Options (Bespoke). Non-standard sizes, lid options and base insulation configurations available on request. Flange profile customisable to suit various roofing types.
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 | Yes |
| Document L Compliant | Yes |
| Certification | BS EN 12101-2 |
| GFA (Geometric Free Area) | 1.06m² |
| Opening Angle | 140° |
| Base Material | 1.25mm galvanised steel |
| Lid | 10mm opal polycarbonate (standard) |
| Opening Time | < 60 seconds |
| Snow Load | SL 250 |
| Wind Load | WL 1500 |
| Temperature Resistance | B300 (−25°C to +300°C) |
| Thermal Compliance | Approved Document L |
| Control Compatibility | 400 Series AOV panels |
| Suitable Roof Pitch | Flat to 15° |
| GFA | up to 2.5m² |
| With Access | Roof 140° opening |
| Lid Options | Poly, insulated or dome |
| Aerodynamic Free Area | 0.74m² |
| Compliance | Approved Document L |
| Maximum Opening Angle | 140° |
| Reliability (Smoke) | Re 50 |
| Reliability (Daily) | Re 10000 |
| Operating Temp Low | -25°C |
| Resistance Temp High | B 300 (300°C) |
| Operating Voltage | 24Vdc |
| Current Consumption | 1.6 amps |
| Cable Cores | 2 Core + Earth |
| Upstand Outer (max.) | 1500mm(W) x 1500mm(L) |
| Flange Outer | 1560mm(W) x 1560mm(L) |
| Base Cover Outer | 1566mm(W) x 1566mm(L) |
| U-value | 2.92 W/m²K |
| Base Insulation | 30mm PIR panel (standard) |
| Upstand Height | 150mm (min.) |
| Flange Width | 230mm (standard) |
| Weight | Approx. 100 kg |
| Roof Pitch | Flat to 15° |
Shipping & Returns
Shipping & Returns
