VENTRA RA is a combination of the multi louvred ventilator type VENTRA with a hinging base adaptor for roof access. This solution meets the need for a EN12101-2 certified natural smoke exhaust ventilator that is also suitable as a roof entry hatch. The base adaptor is formed from high quality corrosion resistant aluminium and is available with single wall or double wall insulated base.

Sideways opening can be either manual with gas springs or with electric motors. The VENTRA as opening lid is available with various louvre- and base options and has standard a 24Vdc motor for daily ventilation and smoke exhaust.