Weeks

Home Hardware

Trusted by roofing professionals across Canada, the VMAX 303-12 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-303-12 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-303-12 also reduce any risk of weather infiltration.

• Ventilation Maximum® 303 model
• Unlike the turbine, these static ventilators do not require it to rotate to prevent water or snow infiltrations
• Unique deflector system prevents 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, wind and pressure differential, a "chimney effect" results in drawing the stale air and moisture out replacing it with fresh new air that enters through the soffits
• Recommended ventilation capacity is 700 to 800 sq. ft.
• Wire mesh to prevent infiltration of unwanted rodents and birds
• Average tested evacuation flow of 266 CFM for a relative wind of 4mph
• Adaptable to roofs with slopes varying between 2/12 to 15/12
• Total ventilation capacity spread over: 12 openings
• Built tough for industrial use
• Galvanized steel

DIMENSIONS:

• 12" x 12"