Why They Are Important
• Roof vents ensure proper ventilation, how ever its possible to over do it. Too much ventilation can be just as bad as not enough ventilation. Roof vents create additional roof penetration, where leaks may occur.
• As a general rule, your roof needs 1 square foot of vent area for every 150 square feet of attic space. Thus, if your attic is 450 square feet, you need roof vents equaling 3 square feet.