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Twista Roof Vent

Roof Ventilation Systems

Twista Grande Domestic Roof Vent Review

RVA does not install Twista Vents – This Article is for information purposes only

Whirlybird Vent Supply & Installation Prices Sydney – Click Here

Twista Grande is the standard whirlybird offered by Twista. Although significantly large in size, this roof ventilator is geared at homeowners. Twista is known for manufacturing extra-large whirlybirds, so it is no surprise that this domestic ventilator has a 500mm throat size. Compared to 300mm whirlybirds more commonly available across Australia, Grande is more than double in size and delivers a more heavy-duty performance.


The alternative to Twista Vents – Click Here

Twista Grande is constructed from exceptionally durable and sturdy materials. The ventilator has an all-metal construction and features twin steel bearing design. This design ensures that the bearings function perfectly over the years and require no maintenance or replacement on your part. It also makes sure that the ventilator operates in a very quiet and smooth fashion.

Grande uses wind energy to rotate which is why it should ideally be installed at a suitable rooftop position. Wind-driven operation translates into zero ongoing energy costs. In fact, Grande can reduce the load on your air-conditioning system by offering highly effective ventilation. In the long-term, this leads to smaller energy bills.

A slight downside to Grande is its extra-large size. This may be perfect for medium-sized homes but smaller homes may not require a 500mm whirlybird for ventilation. If you need to ventilate a smaller roof space or area, you may go with another brand like Ampelite or CSR Edmonds.

That being said, you can be sure that Grande offers genuine quality. The whirlybird has been rigorously tested to be completely water-proof, so you don’t have to worry about the rain leaking through the vent. Besides, the company offers an astonishing 25-year warranty on its Grande ventilator. This is an excellent return-on-investment for the money you may spend on purchasing and installing this whirlybird.

  • Extra-large whirlybird with 500mm throat size
  • All-metal construction
  • Perfect for medium-sized homes
  • Wind-driven ventilator with zero energy consumption
  • Suitable for exhausting heat, moisture and dampness
  • Twin-steel bearing design for quiet and smooth operation
  • Excellent long-term durability
  • 25-year warranty
  • Available in 12 mill finish and Colorbond colours

North American Vents

23  –  Lomanco Tile Turbine

24  –  Lomanco Wall Weather

25  –  Airvent Airhawk

26  –  Airvent Power-Attic Vent

27  –  Grainger Empire Vent

28  –  Grainger Cool Vent

29  –  GAF Masterflow 12″

30  –  GAF Power Attic Vent

31  –  Luxury Metals Vent

32  –  Luxury Metals Galvanized Vent

33 –  Luxury Metals Aluminium Vent

34 –  Luxury Metals Copper Vent

35 –  Home Depot Roof Vent

36 –  Home Depot Roof Vent 12″

37 –  Moffitt Corp Greenroo Vent


about us

We have been in business for over 30 years as a commercial & residential roofing company. RVA is the sister company of Sydneyroof.  At RVA we are focused on Industrial & Domestic roof ventilation, fibreglass skylight panels, and roofing utilities. We believe these areas of the roofing industry have been largely marginalised.  We however, are focused on taking this part of the industry and creating a service-oriented response to our customer's needs.

Why Us?

Competitive Prices

Our pricing is transparent and highly competitive. We do our best to take the guesswork out of the final cost at the beginning.


We take pride in our workmanship and are proud to warranty our workmanship for 5 years, in addition to the manufacturer's warranty.

Over 30 Years Experience

Nothing says commitment like longevity! We are proud of our commitment to our craft and our customers.