Multi louvred ventilator that provides an economic, non powered method of ventilation, allowing the removal of large quantities of warm air and / or smoke from a building within a short period of time.

Product Features

The VENTRA STERLING F is a further development on the already proven VENTRA F but is a response to the increased requirements for air tightness and thermal insulation in certain building designs and applications worldwide. The VENTRA STERLING F is suitable for façade fresh air supply, air and smoke extraction and also façade natural lighting. 

The vents are manufactured according to ISO 9001 quality control standards. The vents are formed from high quality corrosion resistant aluminium to ensure low maintenance requirements and water tightness. 

Various methods of operation using pneumatic or electric actuators are available. The ventilator design produces a versatile economic unit suitable for a wide range of applications. Available on large dimensions, up to 2400 x 3826 mm (width x length) for HB, 2400 x 3804 mm (width x length) for LB. 

Tempered Alumininum


Opening 140º,150º & 160º



RAL 9005

Tempered Glass



Typical Applications

Versatile scope of applications on roofs and facades, with an installation angle range from 0º to 90º. Installations: Industrial buildings, warehouses, logistics centres, shopping centres, atria, schools, stairwells, among others. 


Tempered aluminium, sea water and corrosion resistant (EN AW 5754).
Corrosion resistant bearings.
Built-in weather resistant hydrophobic tape.

Note: aluminum is supplied untreated as standard. Possibility of being supplied with electrostaticpainting (in any RAL color).


Roof opening width: 300 – 2400 mm. 
Roof opening length: 746 – 3826 mm (17 louvres, max.) for HB, 737 – 3804 mm (17 louvres, max.) for LB. 

Installation Angle

Installation angle from 60º up to 90º.

Controls Natural Ventilation

P1: single pipe compressed operation
P2: double pipe compressed air operation
M230V: Electric Motor
Combination set: P1+230V or P2+230V

Controls Fire Ventilation

P1F: Single pipe compressed air operation with fire fucntion
P2F: Double pipe compressed air operation with fire function
M24V: Electric Motor


SW – Sandwich panel 25mm, U-Value=1,65 (W/(m².K))
PC25 – Polycarbonate 25mm / 9-X Structure, clear or opal, U-Value=1,4(W/(m².K))
Glass – Insulated double glass 25mm, U-Value)1,1 (W/(m².K))


Single aluminium
Double wall aluminium with insulation (just for HB)


Depends on dimensions and type of infill.


Custom dimensions
Powder coated design (any RAL colour)
Bird or Insect Mesh
Thermofuse 68ºC/ 93ºC/141ºC


The system has been tested and certified in accordance with EN 12101-2