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Sloped Roof

Allows ventilation up to
1 200 ft2 per unit

Sloped Roof Ventilators

Maximize the performance of your roof with Maximum Ventilation’s sloped roof vents, the preferred choice of professionals across Canada.

Why choose Maximum Ventilation?

  • Unparalleled air exhaust: Design without moving parts that takes advantage of wind power for superior suction, effectively eliminating moisture and preventing mold, frost, and ice dams.

  • Exceptional durability: Made of galvanized steel, with a baked-on paint finish for maximum protection against corrosion and the elements.

  • Maintenance-free: No moving parts or power required.

  • Intruder protection: Galvanized wire mesh grill to prevent rodent and insect intrusion.

  • High wind resistance: Designed to withstand winds in excess of 175 km/h (110 mph), ensuring reliable performance in all weather conditions.

  • Versatile adaptability: Adjustable flashing to accommodate roof slopes between 2/12 and 15/12.

  • Lifetime warranty: Covered by a lifetime warranty against manufacturing defects for complete peace of mind.

  • Energy efficiency: Proper ventilation helps to regulate attic temperatures, reducing the strain on your HVAC system and lowering your energy bills.

  • Extended roof life: By preventing moisture damage and condensation, proper ventilation can extend the lifespan of your roof shingles and other roofing components.

Contact a Maximum Ventilation Retailer today to learn more about our products and find the right solution for your home.

Roof Vent VMAX-301 for ventilation area 1000 to 1200 ft2


Adjustable slope flashing: 2/12 to 15/12
Ventilation area: 1000 to 1200 ft2

Roof Vent VMAX-303 for ventilation area 700 to 800 ft2


Adjustable slope flashing: 2/12 to 15/12
Ventilation area: 700 to 800 ft2


Adjustable slope flashing: 2/12 to 15/12
Ventilation area: 400 to 500 ft2

Roof Vent VMAX-401 for ventilation area 800 to 1000 ft2


Replacement head for any 12 in. round ventilator.
Ventilation area: 800 to 1200 ft2

Cathedral Roof Vent VMAX


Custom made to the slope of the roof. An insulated duct is installed on the ridge of the roof assure an efficient ventilation between the joists of the roof.