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Picture this: it’s summer in the South, and you just cannot get your house to cool down. You crank the AC up as high as you can get it to go and can’t help but wonder if this is really all because you’re in Florida and you’ve hit a record high of over 100 degrees. On the flip side, in January in Tennessee, you’ve hit the annual cold spell and are wondering if you should be concerned about the ice that’s coating everything affecting your roof. In either situation, you might wonder what’s going on – do you need to have your roof repaired? Replaced? Or is it something else entirely?

Roof ventilation is an extremely important part of keeping your house comfortable in any climate. Though some roof contractors may differ on the methodology, it is all too often a critical piece that is simply not talked about when planning for seasonal adjustments.  Read on to understand the important role roof ventilation plays.

How Roof Venting Works

Roof ventilation works much like any other ventilation – by moving air through a standing system to refresh the space. Think of roof vents like the simple system in your car. If you don’t have some method of moving the air around, everything begins to feel (and smell) a little mustier and warm. Your roof contractor will know the regional building ordinances and explain that there are multiple types of vents involved, the main ones being the intake and output vents. This theory behind venting roofs may seem simple and obvious, but its value is often questioned, leading experts like the ones at The Building Science Corporation to call a properly vented attic, “…one of the most underappreciated building assemblies that we have in the history of building science.”

Vents Are Important in Every Season

Hot Weather:

In the summer, this means air that has been warmed up by the extreme temperatures outside gets moved out rather than sitting in your attic, heating up the entire house. The fresh air that blows in will be cooler, because it has yet to be contained, despite extreme temperatures out in the sun. In southern states like Florida, these extreme temperatures can cause damage to the roof, and venting can help to prevent this. Roofing contractors must be especially considerate of this aspect to prolong the longevity of their work.

Cold Weather:

In the winter, it may seem counterintuitive to bring the cold air in and let the hot air out, but so long as you have proper insulation, your heater won’t have to work harder. Instead, the ventilation will allow for continued fresh air to flow in your home, preventing the build-up of nasty mold or mildew that could result from the moisture being stagnant for too long. Furthermore, in cold weather, roof venting prevents ice damming – the phenomenon when the snow melts and turns into heavy ice that can damage individual shingles and whole roofs alike thanks to its weight and intense moisture. If you live in Tennessee, ice damming is a key issue of concern for your roof. Ice damming is often caused by the heat from a house reaching the underside of a roof and warming the snow, causing it to become mushy and melt into an ice form. Venting prevents this by keeping the space right below your roof cooler and allowing snow to stay snowy.

Roof Ventilation Creates an Energy Efficient Home

We all dread seeing our energy bill when temperatures reach their extremes, and we just want to stay comfortable in our homes. By bringing fresh air into the attic space of your home, some of the stress can be taken off your AC system, as it won’t be fighting stagnant heat below the roof. This allows you to lower your bill and keep a more energy-efficient home.

If you think you may need to check the ventilation in your home, contact us. We promise to deliver high-quality customer service in all things roofing, and we believe that proper venting will make your roof the best it can be.

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