How Ventilation Works to Improve Your Roof Lifespan at Home

home attic problem airflow

Roof ventilation is critical for homes. As the sun heats your roof, warm air rises and meets cold air at the top of your roof. The cool, dry air absorbs heat from the warm, moist air below and improves your insulation. This process helps to maintain a more even temperature in your home year-round.

It’s essential to keep your attic ventilated because it prevents moisture buildup that can lead to mold or mildew growth. If you want to avoid water damage or mold growth on your roof, you’ll need to provide proper ventilation. Proper ventilation also reduces energy costs by reducing excessive heating in the summer and lowering cooling costs in the winter. To learn how you can improve the lifespan of your roof with ventilation, read on!

Why It’s so Important

Roof ventilation is necessary to prevent moisture buildup on your roof. If you don’t provide proper ventilation, you’ll likely notice water damage or mold growth on the surface of your roof.

However, roof ventilation is also essential for more than one reason. Proper ventilation has been shown to reduce energy costs by helping to maintain a more even temperature in your home. It also reduces excessive heating in the summer and unnecessary cooling costs in the winter, saving you money.

By reading this article today, you’ll learn how to improve the lifespan of your roof with proper ventilation. You’ll find out why it’s so critical for a home and how it can save you money by reducing energy costs and preventing moisture buildup on your roof that can lead to mold growth.

Types of Ventilation

There are three different types of ventilation: natural, mechanical, and unvented.

Natural roof ventilation is accomplished by allowing the hot air to rise up and out through open windows, vents in upper floor ceilings, or gables at the top of your roof. This type of venting is most commonly used by homeowners who want to save on energy costs.

Mechanical roof vents are more efficient than natural ventilation because they help regulate the temperature inside your home. Unlike natural vents, automatic vents heat up when the sun shines on them and cool down when it’s cloudy or dark outside. Mechanical vents also allow you to close them during cold weather.

Unvented roofs are more expensive but provide a cost-effective way for homeowners to insulate their homes and avoid moisture accumulation caused by condensation. Unvented roofs use radiant barriers that reflect heat into the attic space instead of letting it escape outside, like other methods.

With these three options available, you have many ways to improve your roof lifespan with proper ventilation!

How to Install a Ventilation System

There are many different ways you can install a ventilation system on your roof, including:

– Installing a ridge vent. (Requires an opening in the exterior wall.)

– Installing a soffit vent. (Requires an opening in the exterior wall and/or the soffit.)

– Installing gable vents on either end of the house

– Installing a gable vent in the center of the home.


Ventilation is one of the most important aspects of roofing and can be the difference between a short lifespan and a long one. Therefore, you must consider your specific needs and find the right system for your roof.

We’ve outlined different types of roof ventilation above and provided a guide on how to install them in order to keep your home in excellent condition for years to come.

If you’re in the Greater Northwest, we’d love to serve you! Our professional roofing contractors serve all of NW Oregon & SW Washington.

You can call and talk with Western Pacific Roofing at (503) 659-7663 for all your home roofing needs.

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Western Pacific Roofing

COVID-19 Update:

We recognize that these are challenging times, filled with a high degree of uncertainty. In response, we wanted to let you know we have taken the steps to ensure the ability to inspect your roof, complete an estimate, and do our job while protecting you and our employees! In an effort to continue providing exceptional service for our customers we are still maintaining regular office hours as we have been deemed an essential business. Call by appointment only at this time.

Our main goal is to ensure the health of our customers, team and community members by following the Center for Disease Control (CDC) as well as our local health agency’s advice. In addition to the CDC guidelines, our team is taking the following precautions to prevent the spread of COVID-19:

  • Implementing a “No-Handshake Policy” for all staff. Our team encourages customers to follow suit and maintain social distancing.
  • Cleaning and disinfectant products are readily available to all team members.
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