Permanently open natural ventilators
Provides ventilation in all weather conditions where roof space is constrained. Is CE marked.
Natural louvered ventilators
For day-to-day ventilation and smoke control through the roof or facade
For highly efficient day-to-day ventilation and smoke control through the roof or facade
Natural flap ventilators
Evaporative cooling systems
The standard" evaporative cooling system, where only cooling is required