What is the best roof venting system?

Continuous ridge vents are more effective because they are installed at the peak of a roof’s ridge, allowing for warm air to escape from the attic. There are many good ridge vents on the market, and the continuous vent, as opposed to the individual roof vent, is the most effective.
Ridge vents combined with undereave venting (soffit) is the most efficient system you can install. While other forms of ventilation create hot and cold zones on the roof’s surface, ridge vent provides even distribution of temperature. This means sections of the roof are not aging faster than others.
Bottom line, continuous ridge vents are perfect for shingled roofs, Ridge vents will run along the length of the shingle and replace ridge shingles and tiles. Box vents work best with flat roof structures and require a hole in the roof to fit over for effectivity.

Furthermore, how many air vents do I need in my roof? Fan Calculation. 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.

Do you need to vent a metal roof?

How does a ridge vent work on a roof?

How long do plastic roof vents last?

Do I need an attic fan with a ridge vent?

How many soffit vents do I need with a ridge vent?

How much does it cost to install a roof vent?

Are roof vents necessary?

Can a ridge vent be installed on an existing roof?

Can you have too many soffit vents?

Are gable vents intake or exhaust?

How do you tell if attic is properly vented?

Do roof vents help cool house?