Roof ventilation is supposed to allow air to move both in and out of your attic. This is done through exhaust and intake ventilation, which will move air through an attic with ease. It is important to understand the basics of roofing ventilation to know what kind of vents a roof needs.

Intake Ventilation

Any intake vents that are used on a roof will be placed along the eaves. You'll see them in the form of soffit vents and drip edge vents.

A drip edge vent is placed on the edge of the eaves, and are a smaller vent that wraps around your entire house. Unfortunately, drip edge ventilation will not allow gutters to be installed, which is very problematic for any region that gets rain and snow.

Soffit ventilation is much more common when gutters are necessary for a home. The vents are placed periodically within soffits that surround your house. These parts of the roof cannot have insulation on the interior since it would block the flower of air going into an attic. This would make soffit vents difficult to install if you have spray foam insulation that forms a solid mass of insulation that must be removed.

Exhaust Ventilation

An exhaust vent will move the hot attic air to the exterior of the home. These vents are crucial for keeping a house cooled down during the summer. There are several kinds of exhaust ventilation, which includes powered, dynamic, and static vents. They all perform a similar function but are quite different.

Static vents will be placed along the roof's peak and will channel hot air as it rises up to the top of the attic. The colder air moves in through the intake vents surrounding the house and keeps your home cool in the process. It won't cool down a home fast, but it is passive and work all the time without interruption.

Dynamic vents require wind to operate and can be identified as the type of vent with a small wind turbine sticking out from the roof. The wind spins the turbine and sucks the hot air out of the attic. Of course, a day without wind can cause the hot air to be trapped in an attic.

Powered vents depend on electricity, but they're also dependable at removing hot at quickly and effectively no matter what the weather conditions outside are like. The downfalls are that the fan doesn't work during a power outage, and there is a mechanical aspect that can break down over the years.

Contact roofing services for more information and assistance. 

Share