How Attic Ventilation Impacts Your Roof Health?

attic ventilation-roof-health-impact

When it comes to indoor ventilation, the attic is a vital space to consider. If you think your attic is adversely affecting your roof contact our Woodstock roofing contactors. Here’s a look at why and how your attic ventilation could be harming the integrity of your roof.

Many homeowners tend to think of the attic as an unimportant portion of their house and very few use it on a routine basis. It is true that the position of the attic doesn’t make it the most practical of spaces. That being said, the attic is directly underneath the roof itself. This means that it can have a direct bearing on the health and wellbeing of your roof.

Why Attic Ventilation is Important?

During the summers, the hot air rises towards the top, pooling into the attic space. This can cause humidity and moisture to build up in the attic space, promoting the growth of mold and mildew. Hot and humid air accumulated into the attic over a long period can also cause significant damage to the beams and other components of the roof’s structure.

In winters, a similar problem confronts the attic space. Hot air rises up due to its lower density. When you turn on the heater, the air heated by the furnace rises towards the roof and becomes pooled in the attic. This hot air can cause the ice on the outside of the roof to melt, creating ice dams along the roof. Ice dams can result in a variety of problems for your roof, wreaking havoc on its health in the long-term.

Ventilation is a simple and easy way of removing the air trapped near the attic space and replenishing the attic with fresh air from the outdoors. In the summers, this means replacing the hot and humid air with fresh, dry air from the outdoors. A similar replacement occurs in the winter which prevents the hot air from gathering up in the attic.

How Attic Ventilation Works

The basic principle behind attic ventilation is to promote the intake of fresh outdoor air and removal of stale indoor air. To this end, different types of vents are used. In most cases, a combination of vents is used for attic ventilation.

The intake vents, also known as the eave vents, are usually located under the eaves. These vents allow air from outside to enter the attic area. At the same time, exhaust vents are located at a higher position on the roof, often along the top ridge. These vents let the heated air escape.
When the eave vents suck in air, this air causes the stale air already present in the attic to be removed through the exhaust vents. In this way, a cycle is established which keeps the attic air fresh and dry.

For finished attic spaces, you can alternatively make use of rafter vents. These types of roof vents can be installed in rafter spaces to ensure that fresh air can flow from the eaves to the exhaust vents.

Types of Attic Ventilation

Attic ventilation systems can be broadly categorized into two types – active and passive. Passive vents operate without any external power source. You simply need to install them once and they will continue doing their job on their own. In contrast, active vents make use of a power source to forcefully pull in the fresh air and throw out stale air. Such vents may have a direct electric power source or run on solar power.

When installing either of these types of ventilation solutions, it is important to make sure you choose the right number of vents. Typically, for every 300 square feet of attic floor space, you will need a minimum of 1 square foot of ventilation. You can then multiply the actual number of vents you need depending on how large the attic area is.

Hiring Reliable Roofing Experts in Woodstock, Georgia

Here at Sentinel Exteriors, we deliver a comprehensive range of roofing services in Georgia. Our services include roof gutters and insulation as well. We are equipped to work with all types of roofs. If you live in Woodstock, Georgia, and want a suitable roof or attic ventilation solutions, look no further.

Our experts can help you choose the right ventilation solutions and have them installed in the briefest time. We take pride in delivering a world-class service aimed at 100% customer satisfaction. Contact us today to discuss your roofing or ventilation requirements. We offer free upfront quotes so that you have a sound idea of the finances before you hire our experts.


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