VENTILATION MAXIMUM 12" x 12" Maximum Grey Slanted Roof Vent

Trusted by roofing professionals across Canada, the VMAX 301-12 is the best quality roof vent on the market. With no moving parts, its unique design allows it to utilize the full effect of the wind to create a drawing power, thus eliminating any excess heat and humidity outside the attic space. The VMAX-301-12 reduces the risk of ice damming, moisture condensation and the creation mould & mildew. Built using galvanized steel this vent is completely rodent proof. The unique height design and storm-proof deflector system of the VMAX-301-12 also reduce any risk of weather infiltration.

• Unlike the turbine, these static ventilators do not require to rotate to prevent water or snow infiltrations
• Its unique patented deflector systemprevents infiltrations while at the same time capturing the wind flow from any direction and at wind velocities as low as 4mph
• With this combination of technology, windand pressure differential, a "chimney effect" results in drawing the stale air and moisture out and replacing it with fresh new air that enters through the soffits
• Recommended ventilation capacity is 1000 to 1200 sq.ft.
• Just one of these ventilators can replacethree 12" or two 14" turbines
• A bonus feature to this is its wire mesh toprevent infiltration of unwanted rodents and birds
• Has an average tested evacuation flowof 418 CFM for a relative wind of 4MPH
• This model is adaptable to roofs with slopesvarying between 1/12 to 15/12
• Total ventilation capacity spread over: 12 openings
• Net ventilation: 144 sq.inches
• Minimum height: 20"