Attic ventilation is an often-overlooked aspect of a roofing system, yet it’s crucial in ensuring the roof’s long-term performance, perhaps even saving it from an early failure. In today’s post, residential roofing contractor Dior Construction discusses the importance of proper attic ventilation.
Why Do Roofs Need Ventilation in the Attic?
Warm and humid air tends to rise and settle at the highest point of a building, which happens to be the attic. Its immediate effects can be felt during the hot summer months, and without proper ventilation, the heat and humidity in the attic can affect more than just your comfort — trapped heat and moisture in the attic can have the following effects on the roof:
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Rotting and Warping. The constant presence of moisture in the attic can damage the roof framing and decking, which are mostly made of wood and are therefore susceptible to rotting and warping, which may ultimately lead to an unplanned asphalt shingles installation appointment.
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Ice Dams. If the roof is poorly-insulated, trapped heat in the attic can raise the roof’s temperature and melt the snow on top. As the meltwater flows towards the roof edges, it refreezes and contributes to ice damming.
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Mold Growth. Heat and moisture in a space with minimal exposure to sunlight is the perfect environment for mold growth. Unchecked, mold can spread to your living areas and trigger respiratory diseases.
How To Choose the Right Attic Ventilation
If you have a standard sloped roof, you may already have a set of exhaust vents located at the ridges, and intake vents at the soffits. If they seem inadequate, consider having additional vents installed on the roof: box vents and turbine vents are among the most popular because they do not require power and can create airflow efficiently.
Powered ventilation systems or exhaust fans are another option. Unlike the passive ventilation systems described above, exhaust fans forcibly create airflow and are less visible from the ground. If you are concerned about their potential impact on your energy bills, consider solar-powered exhaust fans.
To determine which ventilation is best for your roof, give our team at Dior Construction a call at (201) 472-5462. You can also fill out our online form to schedule a consultation on our residential roofing services. We serve communities in Bergen County, NJ, and the rest of New Jersey.
