The Whirlwind Roof Ventilator effectively exhausts any hot stale air during the summer season and moisture laden air during the winter season from the attic/roof space of your home. Whirlwind offers efficient performance at all wind speeds, quality manufacturing and represents great value for money.

The Whirlwind is designed for use in residential applications.



  • Saves on household energy use
  • Reduces summer temperatures inside the home
  • Helps your insulation stay dry and remain effective
  • Allows your Air-conditioning to work more efficiently
  • Prevents the build up of condensation and subsequent building damage
  • Uses renewable energy to operate
  • No running costs or maintenance costs



  • Smooth and silent operation
  • Double riveted vanes for extra strength
  • Larger vane openings for improved air flow
  • Low torque bearings allow the Whirlwind to rotate at lower wind speeds
  • Includes variable pitch collar for an correct installation on a pitched roof
  • Non-corrosive, light weight aluminium construction
  • 10 Years manufacturer’s warranty



Whirlwind Roof Ventilator SpecificationModel Number: WW-300


  • Throat Diameter (A): 300mm
  • Overall width (B): 435mm
  • Overall Height (C): 443mm
  • Top Material: 0.7mm Aluminium (5052 H34 Grade)
  • Shaft Material: Hard Steel with Zinc Passivate Coating
  • Varipitch Material: 0.7mm Aluminium (5052 H34 Grade)
  • Base Flashing: 0.7mm Aluminium (5052 H0 Grade)
  • Rotation Bearing: Twin 608ZZ Bearings encapsulated in a ASA+G Bearing Housing
  • Weight: 2.23kg



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