lomanco mill finish all weather roof vent


Grainger Empire Turbine Roof Ventilator

The Empire turbine ventilator is an aluminium-made whirlybird. It is available with Grainger, although you can purchase it directly from Empire Ventilation Equipment, the manufacturer itself. Empire constructs its full range of turbine ventilators from recycled materials, so they are environment-friendly products.

The Empire ventilators have an externally braced design with the external bracing made from high-quality steel material. This reinforces their galvanized steel structure and keeps them aligned even during high wind conditions. Inside the vents, Empire has used premium-quality oil-impregnated bronze bearings at the top and thrust-type bearings at the bottom. These bearings do not require any long-term maintenance on your part.

The Empire vents operate entirely on wind energy. They can harness wind speeds as little as less than 10mph to rotate and ventilate the roof space of your home. In summers, this helps in removing the warmer air and brings in cooler air from outdoors. In winters, the ventilators exhaust moist air that condenses near the ceiling and prevent damage to the roof structure.

Grainger sources Empire ventilators ranging in throat size from 4 inches to 24 inches. The smaller models are perfect for ventilating small to medium roof spaces while the larger models are effective for industrial and commercial facilities.

Being turbo ventilators, the Empire vents require no power source. Instead, they rely entirely on wind energy and incur zero ongoing energy costs. This makes them a very environment-friendly way of ventilating homes as well as larger buildings.


  • Wind-driven turbo ventilators
  • Suitable for homes and larger buildings
  • Throat size ranging from 4 inches to 24 inches
  • High-quality, oil-impregnated bronze upper bearing
  • Thrust-type lower bearing with hardened steel ball riding
  • Galvanized stainless steel structure
  • Externally braced with stainless steel external bracing
  • Zero ongoing energy costs

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.