Ridge Vent HC

Ridge Vent HC provides continuous extract ventilation for most kinds of industrial buildings, providing high volume ventilation. It is aerodynamically designed to provide continuous weatherproof ventilation. The unit can be adapted to accept sound absorbers.

Where a low profile, relatively low weight unit is required, we recommend the Colt Labyrinth or the Colt RVH.

Product information

For the leaflet, click here.

Features and benefits

Tested product - Fully compliant to AS 2427, the smoke & heat release ventilator standard, and AS 1170, the loading code for wind. HC has been tested to all mandatory parts of AS 2428, making it and the Colt RVH one of the only ridge ventilators in the Australian market that are compliant with AS 2427.

Efficient - Ridge Vent HC is efficient in operation and provides continuous ventilation in all weather. It has 100% free area to face area ratio.

The ventilator is not affected by the direction or velocity of the wind - in fact its performance will increase in higher wind conditions.

Weather resistant – The ventilator’s design will not allow water entry into the building at any wind velocity. All water is collected by integral drain gutters and downspouts and re-directed out to the roof.

The ventilator has been designed to withstand wind speeds as high as 210 km/h and can be easily designed for higher wind speeds if required.

Optional damper – An optional manual or motorized damper ensures that air leakage is kept to a minimum when ventilation is not required.

Various fixing options - Ridge Vent HC can be installed onto most kinds of roofs, either at the peak, down slope or on a flat roof. It is compact, so it requires a small area of roof to be cut out.

Easy to install - Ridge Vent HC is delivered to site in breakdown form for easy local assembly.

Durable - Ridge Vent HC is manufactured from tough, corrosion-resistant materials.

Low in maintenance – Ridge Vent HC requires virtually no maintenance.

Design service - Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of Ridge Vent HC.



Clear opening natural ventilator, for natural day to day ventilation.

Dimensions / size range

  • From 610mm throat width to 4575mm throat width

  • From 3000mm to any length 

Damper options

  • Without damper
  • Manual damper
  • Motorized damper

Acoustic options

  • Sound baffles fitted below unit

Sheeting options

  • “Colorbond”
  • Galvanised steel
  • Aluminium

Frame options

  • Hot dip galvanized frames
  • Corrosion resistant coating for frames

Screen options

  • Bird guard
  • Fly screen
  • Emberguard



Max. wind speed 210 km/h+
Snowload class Unrestricted
Water tightness 100%
Sound insulation (R’w) Depends on performance of baffle
Airflow Project-specific engineered to meet specified heat load or air change removal rates

Project-specific engineered to meet specified heat load or air change removal rates

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