Roof Cowls – VCQ Series


VCQ Roof Cowls

Designed to provide a weatherproof opening in ducted systems to the outside of buildings, VCQ is a simple and robust solution. Combined with in-line fans or ceiling-mounted fans, roof cowls sit on a roof and allow air to be drawn in or exhausted from a building. Roof cowls allow ventilation while not allowing rain or debris to enter the ventilation system, which reduces the risk of water damage, mould growth, and other structural problems.


VCQ roof cowls come in a range of sizes and capacities to suit almost any specification in either supply or exhaust air configuration. With several capacities across a range of sizes on offer, VCQ has your ducted systems covered, whatever the specification may be.


The range is manufactured to withstand Australia’s harsh environment using a combination of UV-stabilised polymer, corrosion-protected steel and fibreglass. Each model is birdproof with moulded-in barriers or high-strength anti-bird mesh. VCQ roof cowls can be further customised and specified for coastal locations, marine applications, and food environments like abattoirs.

Additionally, these roof cowls are available in a bushfire-compliant version BVCQ.


  • Low profile
  • Attractive design
  • Fully weatherproof
  • Can be mounted at angles of up to 30°
  • Durable construction
  • Bird proof
  • Available in optional Colorbond™ colours
Selection and Data

Refer to the latest product datasheet for individual model specifications.

Datasheets are available from our electronic selection software FanSELECT.

Suggested specification

Air Relief Cowls shall be of the VCQ Series manufactured by Pacific Ventilation. Cowls shall be constructed from galvanised steel, UV-resistant ABS polymer and fibreglass. Units shall incorporate bird mesh as part of the design.





VCQ series roof cowls require no maintenance. Should cleaning be desired, this should be carried out using a mild detergent. Abrasives or solvents should not be used. Slight fading may occur due to the effect of ultraviolet rays during service; this will not affect the performance of the roof cowl. Under normal conditions, a life expectancy of 10-15+ years is possible.

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Selection software


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