Types of Vent – You Must Know

Low humidity levels are good for a comfortable home, mainly in winter. Vapor on the other end, in combination with smokes from artificial materials like cleaners, pesticides, and chemicals can make air uncomfortable and toxic. The solution? Ventilation.

Of course, the house needs to breathe and draw fresh air and remove stale air. Although this exchange can be encouraged through opening windows and doors, there is some trick to provide the required ventilation without too many expenses. This feat can be accomplished by including the right type of vents.

Following is an in-depth look at some of the most useful types of vents for undertaking this task.

Different Types of Vent

Before we start our article let us have look at the types of ventilation system we usually see – roof vent, soffit vent, attic vent, ridge vent, intake vent, attic ventilation, exhaust vent, roof ventilation, turbine vent, direct vent, type b gas vent, box vent, natural ventilation, static vent, gable vent, power vent, cupola vent, wall vent, supply ventilation, drip edge vent, exhaust ventilation, air vent, static roof vent, natural vent, hvac vents, passive vent, dryer vent, hardwired power roof vent, return vent etc.

There are part of a vent system – vent hood, duct, gas furnace,

  1. Box Vents

This is one of the most effective types of roof vents for the home’s airflow. Sometimes known as Low Profile Vents, Flat Vents, Louvers, or Turtle Vents, they are completely static. That means the parts do not move and gets mounted over a cut-out hole on the roof. Using normal convection, the openings allow hot air to rise and vapor to escape.

The ventilation’s come in multiple colors and materials including hard plastic and metal. The usefulness comes if they are installed close to the roof ridge. That way a lot of moisture and heat gets released. This success, however, is realized when many Box Vents are used.

  1. Wind Turbines

Another powerful ventilation that offers a lot of airflow’s is wind turbines. Often called whirlybirds, they are not fixed because there are moving parts. Since they have no motors, they completely rely on the wind that powers their movement. At the time wind is blowing the turbine moves a lot of air.

Because the qualities have different degrees only high-quality turbines should be installed. Always pick the ones having plastic bushings or lasting greased ball bearings in the revolving unit. It is worth noting that some poorly made units produce irritating noise so choose wisely. While spinning its draws heated air and moisture from the attic. This process keeps the roof well ventilated every time.

  1. Power Vents

Also called Power Attic Vents, PAVs, they come equipped with engines that turn big fans that drive out warm air and moisture from the attic. Available in different colors, some have adjustable thermostats that activate the fan start when the temperature rises. A humidistat is also added to detect humidity levels and turn it on. This means electricity is required for the vents to operate. Sometimes they get hardwired the house’s electrical system. But some models have inbuilt solar panels that power it.

The design of the units makes them be functioning quietly without compromising the operation. Sometimes this feature makes the vents go dead but homeowners may fail to notice that it is no longer working. Thus, it is advisable to quickly inspect the unit after six months to maintain its efficiency.

Power vents excellently work as a roof vent and minimize the temperatures well during summer. Installed close to the gable, the unit’s function as exhaust and intake vents. For effective functioning, there should be strong winds available. This makes airflow from the attic and prevents moisture and snow from entering inside. This way the roof has a long-lasting life thus reducing maintenance cost. In places receiving heavy rains, the ventilations are not suitable for use. This leads to the failure to cool the inside of the home properly because the conditioned air gets expelled fast.

  1. Ridge Vents

One of the most non-electric vents systems is the type installed along the ridges. Known to be static, they need to be run the overall horizontal length of the roof. It becomes even better if everything gets blended to the roofline thus making the home look more gorgeous. If roofers do not place the vents from one end to another, of course, it creates an incomplete look. Installed together with soffit venting it becomes one of the most effective systems.

Unlike the other ventilation forms that result in cold and hot zones on the surface of the roof, ridge vents offer uniform temperature distribution. This makes the roof sections to age evenly. Even better the units are not reliant on wind. That means in case there are changes in wind direction and speed there will be no substantial effect on its performance at any time of the year.

Installing ridge vents means postponing of aging signs thus aids in maintaining the roof’s value. Its shape is usually compared to how an opened book looks when positioned facing down above the roof’s ridge. This is an excellent way of protecting the roof against excess heat and moisture.

  1. Off-ridge Vents

Many times, people confuse box vents with off ridge types because of the similarity in functioning. The static vents are placed on top of a cut roof section close to the ridge. They are available in thin and long sizes so many units are needed to achieve effective results. The units allow moist and hot air to flow out of the house naturally especially when combined with gable or soffit ventilation. Its interior screen protects from annoying pests. The self-flashing overhangs lying on the roof’s surface allow you to easily install them.

Normally, the units are attached using roofing nails to the rooftop. However, it is necessary to check it frequently to ensure that the vents are properly anchored. If they look unfastened, or the number of fasteners holding them in place is less, then there is a weak connection that can prevent water intrusion in the event of storms. Remember the fasteners and flange are concealed underneath the covering. It is hard to just add screws or nails to make better this anchorage because the process creates holes.

  1. Cupola Vents

Cupola ventilations are usually placed on top of a high frame and ridge. The purpose of having the units is purely decorative or functional as static roof openings. Of course, the main intention is to allow hot air to rise and moisture to escape from the building. Despite being effective systems, the abilities can be limited and usually work as a backing to the key vent structure.

  1. Soffit Vents

One best way to enhance ventilation in an attic easily is by adding soffit or eaves vents. Often installed underneath the roof overhang, this type allows cool and dense air to come into space via the bottom points. The good thing is that the units come with slots or mesh to keep away critters. At times the soffits are designed to thin enough and so needs special vents to be installed.  Some have circular shapes to be plunged in place when a hole is cut through using a drill.

The long strips are usually made from a piece of PVC or aluminum and a precise sized one is vented to the holes. The panels will undoubtedly blend well into the holes to provide a way for air intake. Homes fitted only with small-sized gable vents or roof vents should have soffit vents installed to enhance airflow. The effectiveness of the units comes when they are used together with continuous ridge vents at the bottom of the roof.

This vent type comes in different styles and types and is also easy to install. Generally, they cannot be seen from a far-off distance but then they excellently protect against harsh weather conditions, dust, pests, debris, among other things. Not only is Soffit used to provide better airflow during summer, but it also keeps the roof from ice and moisture during winter.

The vents have narrow slots that provide space for circulation thus proper ventilation is provided. However, it is necessary to care for them by ensuring that the systems remain dirt and debris free. Failure to check that will mean hampered free airflow inside the attic.

What is The Best Type of Roof Vent?

Openly saying that a specific ventilation system is superior to the other means you lack enough understanding of the real concern. The critical thing to keep in mind is that homes have different designs and are not also exposed to the same environmental conditions. Therefore, one ventilation option might not serve every home well.

The best system for your roof is the type that does not fail to factor in any house’s airflow and roof’s design. That means it should effectively remove a lot of unnecessary vapor and let in air. To answer this concern well, consult with a neutral roofing contractor so that you can get a custom-made ventilation system as per the needs of your home. The dedication should be towards air intake and exhaust via the roof.


Finally, everyone needs to connect with all the comfort and health that homes bring. Roof ventilation is one key part of any building but is unfortunately often neglected. The industry offers different ways to allow free air movement in spaces.

So, when designing it is vital to decide on the right number that will create a balance. The result will be an enhanced life within and energy efficiency.

Consulting a roofing expert is important to fit the requirements of a house is ideal. The reason is that the various types are dealt with differently. You will be guided on the necessary considerations before choosing one or installing it.