(503) 492-7663
901 SE Mount Hood Hwy, Gresham, OR 97080
(503) 492-7663

Ways to Ventilate a Roof

Proper ventilation is a critical but often overlooked component of your home’s roofing system. Good ventilation not only prolongs the life of your roof but also benefits the entire structure of your home. In this article, we’ll describe the various ways to go about ventilating your roof.

Importance of Roof Ventilation

The Purpose of Roof Ventilation

Roof ventilation exists to control temperatures and moisture levels in your attic or roof space. Effective ventilation prevents the build-up of heat and moisture, reducing the risk of issues like mold, rot, or ice dams. Ventilation can also contribute to energy efficiency, helping to regulate indoor temperatures.

Why is Proper Roof Ventilation Important?

  • Roof Longevity – Poor ventilation can degrade roofing materials over time, meaning you’ll need a replacement roof sooner than necessary
  • Energy Efficiency – Proper roof ventilation can reduce the workload on your HVAC system, leading to lower energy bills.
  • Home Health – Inadequate ventilation can lead to moisture buildup, encouraging mold and mildew growth, which can impact indoor air quality.

Types of Roof Vents

  • Roof Exhaust Vents – These vents, powered or otherwise, release hot air and moisture, generally located at or near the roof peak. They are essential for letting out the hot air that rises naturally.
  • Soffit Vents – Located under the eaves of the house, these vents allow fresh air to enter the attic. These vents usually work in tandem with roof exhaust vents.
  • Ridge Vents – These run along the ridge of a sloped roof and blend seamlessly into the roofline. They offer both aesthetic and functional advantages.
  • Gable Vents – Located at the gable ends of the roof, there are more decorative but can be functional when used in concert with other vent types.

Choose the Right Vents

Selection should depend on several factors such as roof size, local climate, and the roof’s design. Here are some tips for making the right choice:

  • Climate – In hot climates, exhaust vents are important. For colder areas, balanced ventilation combining intake and exhaust is advised.
  • Roof design – The design of your roof can also dictate the type of vents you’ll need.
  • Expert Advice – If you’re not sure, a trained professional can suggest the best alternative for your home.


Effective roof ventilation is vital for the longevity and health of both your roof and your home. By understanding the types of vents available, you can make an informed decision that will pay off in the long run.

Call in the Pros

For questions about roof vents, or for any other roofing issues, you can turn to the experts here at Gresham Roofing? We are a third generation, family-owned company that has proudly served the Portland Metro, Vancouver, Salem, and Oregon Coast areas, including PDX, Lake Oswego, Tualatin, and Camas since 1968. With over 50 years of expertise, we offer a comprehensive range of roofing services to both residential and commercial customers. We offer maintenance, repairs, and 24-hour emergency services to keep your roof in optimal condition. Our experienced team is committed to delivering quality and value, making us your go-to for any and all roofing needs. As a manufacturer-approved installer for major brands, all or our installations come with a full warranty.

For more information about our company or the services we offer, contact us via our website, or give us a call at 503-492-7663. We look forward to serving you!

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