Roof Venting – All about Roof Vent Types

Roof venting is known to be an important part of a healthy home. And yes, it’s needed for a complete roofing system. For the people who are not aware, the installation of roof vents will be a critical part of roof designs because it serves an important purpose of proper attic ventilation. This way, the roof vents will help prevent condensation and thus, the early aging of your roofing materials.

At Top Remodelers, we have several metal roofing contractors registered with us. From them, we got all the information about the roof vent types that are available for use today. With all the gathered information, we have come up with the following article for your reference. Continue reading to know all about the roof vent types here…

Different Types of Roof Vents:

As you might be already aware, the roof vents can be divided into two major categories as intake roof vents and exhaust roof vents. There are several different types of roof vents inside each of these categories. Let’s see about them one by one here.

Intake Roof Vents:

So, what’s the purpose of intake vents or air intake vents? This is mainly used to allow the outside air to enter into the attic and ventilation spaces. As such, these types of vents should be placed along the roof setups’ lowest eave, that is, at or near soffits/eaves. Some common examples of intake roof vents are given below:

Soffit Vent:

This is one of the most popular styles of intake roof vents. These are found to be very popular among the building owners as they are easy to install. Most commonly, these types of intake vents will be made of aluminum or vinyl and will be installed under the roof’s overhang (soffit). Thus, they will be hidden from sight still being able to provide an outstanding protection from extreme weather conditions, outdoor debris, as well as pests. At the same time, they would allow air to flow into the attic.

A note to the homeowners is that irrespective of the style of soffit vents you choose to be installed for your roof venting, you must make sure that they are clear of buildup and/or debris. This step is essential for allowing a continuous free air flow through the openings. The homeowners are also recommended to make sure that the attic insulation is not blocking the airflow. Ask your roofing contractors to pull the insulation back and away from the vents. You should also ask them to install attic ventilation baffles during the venting installation. This would help prevent the insulation from creeping up along the edges of the soffit.

Drip Edge Vent:

you are planning to install more than one static vent, they will be centered between your rafters and will be installed at regular intervals along a horizontal line along your roof.

Gable-End Vent:

As the name of the product suggests, these are the vents that are installed in the walls of your building at the gable-ends peak. As such, this type of vent is nothing but a slotted piece of wood/siding that will be installed near the gable where two pitches are meeting in a triangular shape.

Note that, these gable-end vents can be used as both as intake and exhaust roof vents if there are no intake vents installed at your home. But, the effectiveness of this functionality of your gable-end vents would rely completely on the direction and speed of the wind. In this line, we must understand that these vents will be effective only if winds are blowing in sufficient speed and are also coming from a direction that is perpendicular to the gable ends. On the other hand, these gable-end roofs will not be much effective if the winds are lighter and/or are coming from a direction that is parallel to your gable ends.

Due to these reasons, the roofing experts recommend the homeowners to use these vents along with the intake soffit vents (installed near the bottom of your roof). It’s also to be noted that some professional roofing contractors are against the use of these types of exhaust vents if the side of your home is subjected to driving rains regularly.

Turbine Vent:

Again, these types of exhaust vents are also relying on winds for its functionality. The difference is that these vents require winds for rotating the turbine fan blades of the vent, which would play the role of drawing air from the ventilated space. The turbine vents are known to be very effective when compared to your static vents because the turbine vents will draw air from the ventilated space at a higher rate than the static vents when winds are blown at sufficient speeds.

Similar to the gable-end vents, the turbine vents would also be very effective if they are installed in the areas with heavy winds. The roofing contractors say that the homeowners can choose to use the turbine vents if the winds in the areas are blowing at the speed of at least 5 miles per hour. You might ask whether you cannot use the turbine vents in the areas of low wind speed. For this, the answer will be, you can use it but they won’t be much efficient. Thus, the turbine vents will not be a reliable source of venting in the areas with low wind speed.

Apart from the speed of the winds, the efficiency of your turbine vent is also depending on other factors like turbine size and its efficiency.

Powered Vent:

The powered vents are nothing but your exhaust fans that are mounted on the roof. These are being used for exhausting air from a ventilated space and can be controlled by using a thermostat or moisture monitor. You can find blades in these types of vents that would rotate within the unit thereby sending out

It’s to be noted that if there are no soffits, you cannot go for soffit vents. In some other cases, the roof style will not allow the installation of soffit vents. In such cases, the homeowners are having another choice like drip edge vent. As such, the drip edge vents are known to serve a dual purpose by promoting the water shedding at the eaves, as well as the rakes of the roof, when at the same time allowing for ventilation into your attic. In most cases, these drip edge vents will be made from a corrosive-resistant material. This will be installed to stick out about 3 inches back from the edge of your roof, which would then bend downwards over them. You can find some openings in these vents and these would allow for the air to freely flow into your attic.

We would like to inform the homeowners that you are recommended to go for this type of roof vent only if you cannot use the soffit vents. It’s because, with the drip edge vents, you have a disadvantage that they could promote building up of ice dams during cold weathers.

Exhaust Roof Vents:

The air exhaust vents are primarily used to allow the air in the attic and ventilation spaces to go out to the exterior. As such, these types of roof vents will be placed at or near the ridge/high point of the roof apparatus. Some common examples of exhaust roof vents are explained below:

Ridge Vent:

As the name suggests, these are the vents that are laid along the ridge of your roof. You can get these as a single long piece or as a series of individual units. When it comes to the making of these ridge vents, most of the times, this vent would appear as different from your shingles. Therefore, we would recommend you to ask your roofing contractors to have your roof shingle above your ridge vent after its installation. These types are often called as shingle-over ridge vents.

Now, coming to the advantages of using these types of vents for your roof, experts say that these vents would give you a reliable open space for the warm air to exit the attic. Thus, this ridge vent can be used to provide the much-needed exhaust ventilation along the entire length of your attic. This, you cannot get from other types of exhaust vents because there will be some isolated areas in them. Despite this added advantage, some professional roof contractors are not recommending the use of this type of exhaust vent at home because the increased open space for air would give room for the blowing snow and/or rain to enter into it.

You can prevent these things from happening by making use of some newer styles of ridge vents that are coming with curved channels.

Static Vent:

This represents the type of exhaust vents that come as individual vents and are installed near the ridge of your roof. These vents are coming in a range of styles and sizes. However, note that all the non-motorized vents are installed near your roof ridge in order to allow the unobstructed passage of air from your attic. If

the air from your attic. This action will take place until the ideal temperature or moisture levels are attained. Once the ideal conditions are met, they will shut off automatically.

As such, these types of exhaust vents would improve the air movement and must be mounted near to your ridge. The professional roofing contractors recommend the use of these vents in conjunction with intake vents that are installed at eaves or soffits. On the other hand, you should remember that the powered vents should not be used along with your ridge and static vents that are installed near your roof ridge. This is because, most often, the air volume being expelled by your powered vents would lead to the air intake. Thus, it could cause moisture infiltration through the ridge or static vents.

As mentioned above, with powered vents, you can use automatic controls as a thermostat and/or humidistat switches for controlling the temperature and moisture levels. However, we also recommend you to have a manual override too.

What about your bathroom and kitchen vents?

The readers should understand a point here that your bathroom and kitchen vents won’t fall under the type of your roof vents. These vents are meant to expel warm and moist air from your bathrooms and food preparation areas of your home and that they require ducts and vent hoods of their own that would take air to the exteriors of your home. Here, remember that these types of vents and ducts should not be installed in the same place where your roof vents are being installed. Also, remember that the air should not be directly vented into your attic.

So, this is all about the types of roof venting commonly available today. If you need further clarification about the installation of a roof venting, feel free to contact us here.