SV-R-L Smoke AOV Roof Louvre 1m²






SV-R-L is a highly-efficient, attractive, low profile louvred smoke and natural ventilator which has been specifically designed for both smoke and heat exhaust and natural ventilation applications. SV-R-L can be roof or wall mounted for exhaust or air inlet. The system offers effective fire safety with units tested for use as smoke ventilators to BS EN 12101-2. The roof SV-R-L can also be supplied with a hinged base which can be utilised as an access hatch.

Features Include:

High efficiency - aerodynamically tested to BS EN 12101-2:2003 Weatherproof - its resistance to air leakage and rainwater is tested to BS 5368 and BS 6375 Reliability - life cycle tested to class RE1000 under BS EN 12101-2: 2002 Durability - tested to withstand wind loads of class WL1500 and snow loads of up to class SL500 under BS EN 12101-2:2003 Controls - a wide range of control options are available Installation - can be fitted into any roof or glazed construction SV-R-L is suitable for fixing in a wide variety of applications. The ventilator is supplied in two parts to facilitate easy installation on site, the base assembly and louvre box assembly. The base types and applications are as follows:

Turndown Base - mounting onto weathered roof upstand Flat Base - mounting directly onto roof sheeting Glazing Base - integrating into glazing systems

The roof SV-R-L can be supplied with both insulated louvre blades and an insulated body to assist in ensuring the building is adequately insulated. Also the SV-R-L can be manufactured with polycarbonate blades. Translucent polycarbonate louvre blades provide excellent daylighting using a durable UV stabilised material. When closed it can provide an average diffused light transmission in excess of 80%, enabling savings on artificial lighting. Pile weather seals are also fitted to the louvre blade edges and sides to minimise heat loss.

The roof SV-R-L has been tested to BS EN 12101 – Part 2: 2003: Specification for natural and heat exhaust ventilators. When closed the ventilator is weatherproof and is tested to BS 5368 Parts 1 & 2.

*Vents are made to order and typically take between 6-8 weeks for delivery, please contact our sales team for further details.*

  • 1 x Vent
  • 1 x 24V DC Actuator
  • 1090 x 1310mm
  • Bespoke sizes available, please contact our sales team for further details
  • Mill finish
  • Bespoke colours available, please contact our sales team for further details
  • 1m² (Geometric)

For any help or technical support please contact our sales team - 01242 622 958 |

Next working day on orders placed before 3.00pm (Monday-Friday). Please note some items can be out of stock so we recommend contacting our sales team for availability - 01242 622955 or

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