Available Colours

Regent Grey


Metro Brown


For Additional Colours

Roof Vent

Ventilation area 1000 to 1200 ft2

Adjustable sloped flashing from 2/12 to 15/12
Suggested ventilation area: 1000 to 1200ft2.

Unlike the turbine, the Maximum Ventilators are CSA approved and do not require to rotate to prevent water or snow infiltrations, even withstanding hurricane wind and rain conditions of 175 km./hr. or 110 mi/hr. Its unique storm proof system prevents infiltrations, while at the same time capturing the wind from all directions and at velocities as low as 6 km./hr. (4 mi./hr.). With this combination of technology, wind and pressure differentials, a “chimney effect” results in drawing the stale air and moisture out of the attic space, while replacing it with fresh new air that enters through the soffits.

The model VMAX-301 has been designed for slope roof application and is compatible with most all types of roofing membrane including metal. It has no moving parts, requires no electricity, and is completely silent and maintenance free. Built tough to endure the harshest weather conditions that nature has to offer including hail storms. It sits high enough off the roof deck to allow it to weather through snow accumulations without being covered, thus, finally giving the home owner a peace of mind.


  • Deflectors: 4
  • Standard Gauge: 24 & 26
  • Net Free Evacuation: 144 in2
  • Rodent Proof: Built-in galvanized wire mesh screen
  • Finish: Interior and exterior powder coated polyester baked paint with UV protection
  • Suggested Ventilation Area: 1000 to 1200 ft2
  • Adjustable Flashing: 2/12 to 15/12
  • Storm Proof: Unique precision engineered deflector system
  • Solid: Built of galvanized steel
  • Compliances: CSA, CAN-3-A930M82, ASTM-527, Miami Dade approved, ICC-ES
  • Warranty: Limited Lifetime Warranty on all manufacturing defects, 5 years on paint & corrosion
  • Available Colours: Black, Brown, Grey and Charcoal
A limited selection of special colours is available at a slight premium.



This special flashing is installed directly on the ridge of the roof allowing for a perfect balance of ventilation and extra height for the heavy snow regions or forest areas. It allows for a fast and easy installation onto any roofing materials whether it be asphalt shingles or metal roofs. It can be manufactured to fit all dimensions, and can be made of any raw metal of your choice.

  • When ordering this flashing, the slope is required.
  • Manufacturing delays may vary depending on season.
  • Available Colours: Black, brown, or grey.

A limited selection of special colours is available at a slight premium.


If your roof ventilator is not high enough. We have an extension from 12″ to 72″. Available Colours: Black, Brown, and Grey.

  • Special orders only. Manufacturing delays may vary depending on season.
  • Available Colours: Black, brown and grey.
  • Please note that we can manufacture in other sizes, metals or gauges.
  • Support Brackets are available for extensions three (3) feet and higher at a small premium.

A limited selection of special colours is available at a slight premium.


If snow infiltration is a problem. The Media Filter can be used in residential, commercial and industrial applications. A loss of ventilator efficiency of approximately 20% should be considered.


Used in conjunction with the media filter. The retention pan constructed of galvanized steel and includes four corner straps for installation.


Counter flashings are made of galvanized steel to the exact size of the ventilator’s body and/or cathedral system. Counter flashing are required for steel roof installations.