Roof vents provide an outlet for hot air to escape your attic, and for new, fresh air to flow into your home through intake vents located in your home's eaves. Having proper roof ventilation can help keep your home cool in the summer, and can reduce the overall amount of moisture within your home, increasing your overall comfort level. The two most common types of roof vents are flat and turbine roof vents, which provide the same function but do so in different ways. Understanding what both types of roof vents have to offer can help you choose the one that best suits your home's needs.
Flat Roof Vents
Flat roof vents are the most common type of roof vent found on homes. This is primarily because of their affordability, as they are the least expensive ventilation option for your home. However, they are also very low profile, and sit low to the slope of the roof, which means that they can be hard to see from the ground and will not be a noticeable blemish on your roof. Furthermore, flat roof vents do not have any moving parts, which reduces the likelihood of them needing repairs or maintenance, which can help cut down long run costs. Additionally, the lack of moving parts means that flat roof vents will work no matter the weather conditions.
However, flat roof vents are very passive in ventilating your home, which means a great deal of them will probably have to be installed on your rooftop to ensure proper ventilation. This can increase the amount of time and money you have to spend on installation.
Turbine Roof Vents
Turbine roof vents, also sometimes called whirlybirds, are vents that extend out of your roof. A large cylinder catches the wind as it blows, spinning the cylinder around and sucking air out of your attic. These types of roof vents are much more effective at ventilating your home during windy weather, and can cool down your home faster than a flat roof vent can. This means that only a single or a few turbine vents (depending on the size of your home) have to be installed.
However, turbine roof vents are slightly more expensive than flat roof vents on a per unit basis. Additionally, while they are more efficient while the wind is blowing, they are not very effective when there is no wind. Finally, it should be noted that turbine roof vents extend out of your roof, which makes them extremely noticeable from ground level, and can ruin the aesthetic of your roof.
For more information and help in choosing which option is best for you, contact a local roofing company.