The Bovema casement type ventilation windows type VR suitable for daily ventilation.
The slim profiled shape makes the VR ventilators particularly suitable for installation into the roof glazing systems used on many industrial and commercial buildings.
The ventilators are available with various specifications for the opening panels. They may be fitted with translucent single or double-glazed units, to provide various levels of thermal or acoustic insulation performance and light transmission, to match the project requirements.
Weatherproof EPDM seals provide a very high level of air tightness and prevent water penetration, when closed, even under extreme weather conditions.
Warm air is lighter than cold air and rises by convection. This thermal principle can extract large quantities of warm air from a building without any additional electrical power consumption.
The Type VR ventilator is top hung and is designed to encourage additional ventilation due to external wind action.
The ventilators provide openings that offer very little resistance to air flow.
Manual or automatic controls using pneumatic or electric actuators can be combined with control panels having inputs from thermostats, rain sensors, wind sensors or fire alarm inputs to provide Building ventilation systems to meet any required control specification. In case of smoke alarm inputs the smoke ventilation windows would be controlled on a priority basis to a full locked opened position.
Opening light panel:
- Single skin;
- Thermally insulated aluminium units;
- Thermally broken and insulated units.
Wing filling:
- Single skin;
- Thermally insulated aluminium;
- Thermally broken and insulated units;
- Steel;
- Copper;
- Plastic or other materials to suit architectural requirements.
Installation frame and base frame:
- Single skin;
- Thermally insulated aluminium units;
- Thermally broken and insulated units.
The ventilation windows type VR are supplied fully assembled and each is tested before delivery.
As standard the unit is manufactured in natural mill finished aluminium but can be polyester powder paint finished, to any RAL colour, selected from the Bovema standard colour range.
The installation flanges are manufactured to suit the specific project requirements and are fully welded to give complete weather resistance.
The light weight and flexibility of construction of the VR ventilator frames allows for installation into almost any roof or rooflight construction.