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St Louis Roofing: Article About Roof Ventilation Components

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St Louis roofing professionals must survey many different structural components at each preventive maintenance appointment. From gutters to penetration flashing, there are countless areas where water leaks could become a problem. A lesser known inspection area is the roof ventilation shaft. All roofs need proper air flow across their surfaces to maintain steady temperatures, allowing them to withstand extreme heat and cold. Specific components contribute to positive air flow across the structure when they are periodically inspected and repaired.

The most visible ventilation component from the ground is soffit vents. These grated openings are located on the underside of the roof's eave. They are protected from most weathering elements by the fascia board. Air passing around the home can enter the soffit vents, allowing it to move into the roof structure. Each home has a varied soffit vent quantity, depending on its size. For example, a larger home requires more vents for adequate ventilation.

As air flows into the soffit vent, it enters the main passageway. This shaft exists between the roof sheathing and attic ceiling or insulation. Air moving through this shaft allows all surrounding materials to remain cooler during the summer and warmer in the winter.

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No hot or cold spots develop on the rooftop, preventing accelerated wear over the years.

Air moving through the shaft will warm as it rises, especially during the summer. This hot air must exit the structure to maintain temperatures, so ridge vents provide a safe ventilation area. The roof's peak or ridge usually has covered vents across the entire edge. Air moves out to the atmosphere, creating a positive air flow between the soffit and ridge.

The ventilation system can develop problems over time, which can cause systematic roof damage. Animals living in the shaft impedes air flow, for example, but this is typically a rare occurrence. A more common issue is painting over soffit vents. Painters quickly cover grated vents with thick paint, effectively stopping any air flow into the attic space. Homeowners must diligently service the ventilation shaft for the best roof care.

Keep an eye on the roof's health from a ground view in between maintenance appointments. Residents can quickly pinpoint if a roof appears damaged, such as blistering occurring across shingles. Homeowners can contact professionals and schedule an appointment quickly to verify their findings. If accelerated weathering is occurring, ventilation processes might be hindered. Contractors will find the problems and solve them for a sound structure that stands the test of time.

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