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OPTI-F412 – 4 wings roof ridge ventilator

The OPTI-F412 attic vent is designed to be installed on the ridge of sloped roofs. Available with 1 to several fins delivering optimal ventilation to the attic. Openings shaped from the structure of the vent eliminate any need for long-term maintenance and prevent the intrusion of birds or rodents inward. The anti-gust deflectors prevent the infiltration of weather regardless of the wind direction. This vent gives the advantage of a cooler attic in summer and drier in winter. It thus extends the integrity of the structure optimizing the comfort inside and increased energy savings. The static vent with the help of the wind, produces a chimney effect. The air is exchanged continuously. It exchanges air from the attic at a frequency of 418 ft ³/min, thus ventilating an area of 1000 to 1200 sq. ft.

Would you buy this product?



  • Optimizes and evenly tempers attic ventilation
  • Facilitates the evacuation of heat and condensation
  • Preserves the integrity of attic materials
  • The design fits very well on the ridge
  • Easy to install by only one person
  • Screws included
  • Flange that can be fixed on the ridge of sloped roofs according to the roof angle
  • Anti-gust deflector
  • Quiet and maintenance-free




Ventilation is required by the Canadian Building Code. So a Good ventilation means keeping the attic space near the outside temperature to avoid excessive contrasts. With the help of soffits, for example In summer, the chimney effect created by the Optimum ventilator eliminates excess heat from the attic and thus helps maintain the integrity of the asphalt shingles. In winter, you will get a drier attic. So no matter what the season, Optimum Ventilators will help to optimize the comfort of your home!


OPTI-F412 30,4 cm • 12” 49,5 cm • 19,5” 25,4 cm • 10” 27,9 cm • 11” 0,09 m² • 144 in.² 4 22 – 24 & 26
OPTI-F414 35,6 cm • 14” 54,6 cm • 21,5” 25,4 cm • 10” 30,4 cm • 12” 0,11 m² • 182,25 in.² 4 22 – 24 & 26
OPTI-F516 40,6 cm • 16” 59,6 cm • 23,5” 31,7 cm • 12,5” 30,4 cm • 12” 0,16 m² • 256 in.² 5 22 – 24 & 26
OPTI-F518 45,7 cm • 18” 64,7 cm • 25,5” 31,7 cm • 12,5” 30,4 cm • 12” 0,20 m² • 315 in.² 5 22 – 24 & 26
OPTI-F620 50,8 cm • 20” 69,8 cm • 27,5” 37,5 cm • 14,8” 30,4 cm • 12” 0,26 m² • 400 in.² 6 22 & 24
OPTI-F622 55,8 cm • 22” 74,9 cm • 29,5” 37,5 cm • 14,8” 30,4 cm • 12” 0,31 m² • 483,75 in.² 6 22 & 24
OPTI-F724 60,9 cm • 24” 80 cm • 31,5” 43,8 cm • 17,3” 30,4 cm • 12” 0,37 m² • 576 in.² 7 22 & 24




The vent is manufactured from galvanized steel followed by a specialized baked paint finish.

Custom model

Custom models are available as special order. *We can manufacture any other size on request. *Please indicate the slope of the roof and desired colour.


This model is available with or without filter. In case of a ventilator with filter, you are obligated to install a water collecting tray. At any times, it is strongly recommended to install a water collecting tray (OPTI-PAN) under your ventilator, it is the solution for a dry attic.


This model is available with or without filter. In case of a ventilator with filter, you are obligated to install a water collecting tray. At any times, it is strongly recommended to install a water collecting tray (OPTI-PAN) under your ventilator, it is the solution for a dry attic.


CSA Certified

The National Building Code requires adequate ventilation of the roof as per the minimum standard of Section 9.19.1 or according to the ACNOR CAN3-A93-M82.


Optimum vents have a limited lifetime warranty against any manufacturing defects that may affect the unit. We can offer this peace of mind to all our customers because all our products are CSA approved. We apply also those same criterias of quality on all custom models. This means that during the time when the owner of the house who installed or had installed the Optimum vent remains at the address of the installation, Ventilation Optimum replace it free for the first five years and thereafter, in proportion to the years of use, against any defect. In such a case, the cost of transportation and installation will be at the customer charge as well as any home repairs. The warranty applies in all cases where the Optimum vent has been installed according to our recommendations and has been free from any abuse, misuse or other circumstances beyond the control of Ventilation Optimum including salty air.
Warranty regarding painting:
The Optimum Roof Ventilator is made of 24 and 26 gauge galvanized steel and is coated with a powder or liquid baked polyester based paint. Optimum Ventilation is proud to offer you a 5 year warranty against corrosion. During this period, Ventilation Optimum will replace the product at the counter upon presentation of the original proof of purchase.
The responsibility of Ventilation Optimum is limited only to the replacement of parts in the workshop. All expenses related to time, travel and home repairs are not covered by this warranty.
Corrosion that does not result from a defect in material or workmanship is not covered by this warranty. Circumstances beyond the control of Ventilation Optimum such as: corrosion caused by industrial fallout, acid rain, accidents, damage, negligence, modification of the product as well as that resulting from improper installation damaging steel, paint scratched by handling, installation or negligence, by an acid environment such as swine farms etc … are excluded from this warranty.
This warranty also excludes damage caused by:
– Infiltration of water due to an improper installation that does not comply with the recommendations and instructions of the manufacturer,
– The infiltration of water and / or condensation due to a building deficiency at the level of the national building code.
– Failure of roof drainage.
– The accumulation of snow covering the vent
– Any domestic paint applications or inappropriate cleaning solutions.
– Bad weather and natural disasters
– Transportation, handling or storage
Tightness of the roof or parts installed by the contractor are not guaranteed as they are out of the control of the manufacturer. It is the roofer’s responsibility to ensure that the base is properly waterproofed using the proper roofing products. The Association of Master Roofers (AMCQ) recommends using the following technique: Metal flanges: The metal flanges of all projections must be coated with a primer embedded in plastic roofing cement, covered with a fold of cotton saturated with asphalt or canvas, followed by a fold of 15-pound felt and another fold of cotton saturated with asphalt or canvas embedded in a bitumen. In addition, having no precise notion of the composition of the building such as the tightness of the vapor barrier, the insulation or the exact amount of air inlets; these elements do not allow us to give a guarantee on the final result. Proof of purchase showing the date, your name and the shipping address will be essential in order to make any warranty claim.