Roof ventilation types

The term “ roof vent ” can mean many things. As we define it, a roof vent is designed to remove hot air and moisture out of your attic. To find out why having a custom roof ventilation system is so critical, check out our blog post How Important Are Roof Vents ? Still, there are many different types of roof vents.

Roof ventilation prolongs shingle life, keeps ice dams at bay and prevents mold growth in the attic. Every roof requires adequate ventilation, but the specific types and placement of vents depends on how the home is situated in relation to area wind and weather patterns.

Consulting with a professional roofer . More ventilation is not always a good thing. Often times roofers will miscalculate the number of vents required for proper ventilation , or will add more vents upon request of the homeowner. The one drawback is the original price you pay compared to more traditional ventilation types. The RAVC recommends never mixing two types of exhaust vents on the same roof above a common attic because it could short-circuit the attic ventilation system. Air follows the path of least resistance.

That path is supposed to be from low in the attic (intake vents) to the highest . Roof ventilators are used in all types of commercial, institutional, and industrial buildings in applications from comfort ventilation to manufacturing processes.

In fact, roof ventilators may even help extend the life of a building by providing proper airflow. So how do you know which rooftop ventilator is the right one for your . What type of ventilation system is right for you? Learn about the types of vents now. There are many types of attic ventilation fixtures, from windows to vents. How the attic is designed and used will in part determine what type of ventilation is necessary.

For example, an attic that is suitable for living may include windows or skylights, whereas an attic that is little more than a crawlspace may just have vents. They provide air circulation to the attic. Each home may require a different version of this type of roof ventilation.

There are aluminum, vinyl and continuous soffit vents, as well as drip edge ventilation for those who have no soffits . Because most people are unaware that attic ventilation can impact the longevity of their entire home! In the summer, improper ventilation can cause attic heat to build in excess of 160°F. This super-heated air eventually penetrates the ceiling insulation into the living area below.

Types of damage that can result include:. This configuration of balancing air intake along low points and air exhaust at high points takes advantage of natural convection. Some common types of exhaust vents are: Ridge Vents : Ridge vents. Proper ventilation at the roof is important to a complete attic ventilation system as well as to the structural integrity of the roof.

A roofing contractor can install four different kinds of roof vents that all fall into one of the two categories.

Tips for choosing the right roof vent. Home design is changing and so are the ways in which we need to choose our ventilation. For this type of roof the contractor can decide . Understand when to vent your roof, when not to, and how to execute each approach successfully. The thickness of the insulation will vary depending on the type. Numerous studies have been completed regarding the effectiveness and optimization of general roof ventilation and particular types of roof vents.

The benefit of roof ventilation is undisputed. Laboratory setting are a poor indicator of real world wind and weather behaviors. Moreover, regional differences magnify certain . When different types of roof vents are installe there is an increased potential for air in the attic to basically short-circuit. In the photo above, the power vent would probably end up sucking in air from all of the other high vents in the photo, while pulling in just a small amount of air from the lower soffit vents.

Use the right type of attic vent for the right project and roofing contractors can expect efficient performance and energy savings from the attic ventilation system.