Ventilation system on the building roof, technology, HVAC

What Is the Best Roof Ventilation?

While a roof is designed to keep rain, wind, bugs, and allergens out of the home, protecting the building and its contents from the weather, it will not be effective without a strong roofing ventilation system.

Poor roof ventilation can cause a range of problems, not only for the roof but for the entire structure of the home. Prioritize a roof inspection to determine how best to update and improve your roofing ventilation system. This can save thousands of dollars in energy costs and repairs in the future.

What Is Roof Ventilation?

A roof ventilation system is comprised of a series of vents that allow hot air to escape from the building.

These vents work together with the roof vapor barrier to protect the home from problems associated with moisture buildup that occurs when hot air is trapped in the attic.

In general, it is recommended that there be at least one roof vent for every 300 square feet of attic space if there is a vapor barrier in place. If there is no vapor barrier, there should be a vent for every 150 square feet of attic space.

Why Does a Roof Need Ventilation?

If a roof is not properly ventilated, hot air will accumulate at the highest point in the building, which is usually the attic or any room directly underneath the roof.

Just like a bathroom requires ventilation to release hot, wet air after a shower and kitchens have ventilation systems to release moist hot air caused by cooking, it’s important to give air a chance to escape from the attic. If this air isn’t released, it can cause mold, moisture buildup that rots the ceiling and support beams, and other moisture-related problems.

What Is the Best Type of Roofing Ventilation?

There are a few different types of roofing vents to choose from, including these:

• Power vents: These disc-shaped vents sit low on the roof and are powered by electricity to move air out of the attic. In the winter, they should be coupled with a humidistat to avoid moisture buildup due to humidity.

• Turbine vents: These round vents sit on top of the roof and move air through and out of the attic about a dozen times per hour, whether or not there is wind.

• Solar-powered vents: These vents work like power vents to move air through the attic, but they are powered by a small solar panel.

• Ridge vents: These run the length of the ridge. Depending on the type, they may be passive or active vents.

• Box vents: These vents are not powered by anything. They release hot air when it builds up enough to escape on its own.

The best type of roofing ventilation will be powered to run at all times.

What Type of Roofing Ventilation Is Right for My Home?

If you would like to discuss options for ventilating your roof, contact Four Seasons Roofing today to find out more about what will work best for your needs.

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