Why Is Proper Attic Ventilation So Important?

The role attic ventilation plays in preventing moisture damage is just as important as the function of the roofing shingles. Read on as the roof repair  contractors at Patriot Roofing LLC elaborate more on the importance of adequate ventilation in this quick guide.

A man is installing a vent on a roof.

The Function of Attic Ventilation 

Adequate attic ventilation ensures cool, fresh air enters the attic through the soffits (the underside of the roof overhang) and hot, moist air exits through the exhaust vents. What happens if there isn’t adequate ventilation or not enough exhaust vents? Some of the issues that can arise include:

1. Moisture damage – Trapped moisture in the attic creates a damp environment that’s the perfect breeding ground for mold as well as rot. Mold and rot can slowly eat away or weaken the wooden beams supporting your roof, potentially compromising its structural integrity.

2. Higher heating and cooling costs – In winter, excess moisture can dampen attic insulation, lowering its R-value—the value that indicates your insulation’s thermal resistance or its insulative capabilities—and raising your heating bills. In summer, heat from the sun can travel to your attic through the roof sheathing and radiate through the adjacent areas, raising indoor temperatures and forcing your HVAC system to work harder. Added strain to HVAC systems can, in turn, lead to more frequent breakdowns.

3. Cracked shingles – Cracks can start to form on shingles because of premature aging stemming from increased roof temperatures.

Maintaining Adequate Ventilation 

Keep in mind that having more ventilation isn’t necessarily better—indoor airflow and pressure have to be balanced. Various factors, including the number of exhaust vents, can affect this balance. That’s why if you’re not sure your attic has adequate ventilation, it’s best to have an experienced roofing contractor inspect your attic.

Looking for experienced contractors in your area?

The team at Patriot Roofing LLC has over 30 years of combined roofing experience. We offer a wide range of professional roofing services, including gutter installation services. To get a free estimate, call us at (405) 996-6787 or leave us a message here. We serve homeowners in Midwest City, OK, as well as the surrounding communities.

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