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Roof Ventilation: The Key to a Healthy, Long-Lasting Roof

Proper roof ventilation is essential for any roofing project, but it's often an overlooked aspect. Effective ventilation extends the lifespan of your roof, improves energy efficiency, and creates a healthier attic space for the entire building.

Why Roof Ventilation is Critical

  • Prevents Moisture Buildup: Ventilation allows trapped moisture and humid air to escape, preventing rot, mold, and deterioration of your roof's structure.
  • Reduces Ice Dams: Proper attic ventilation helps maintain a consistent attic temperature, minimizing the formation of ice dams during winter months.
  • Extends Shingle Life: Excessive heat buildup in the attic shortens the lifespan of asphalt shingles. Ventilation helps regulate temperatures and extends your roof's longevity.
  • Improves Energy Efficiency: Reduces the strain on your HVAC system by removing hot air from the attic, leading to potential energy savings.

Components of a Roof Ventilation System

A balanced roof ventilation system typically consists of two main components:

  • Intake Vents: Typically installed along the soffits or eaves, intake vents allow fresh, cool air to enter the attic space.
  • Exhaust Vents: Located near the roof's peak, such as ridge vents or roof turbines, exhaust vents expel hot, humid air from the attic.

Types of Roof Vents

  • Ridge Vents: Continuous vents along the entire roof ridge for optimal exhaust ventilation.
  • Off-Ridge Vents: Individual vents spaced across the roof, also known as box vents or can vents.
  • Turbines: Wind-powered exhaust vents.
  • Solar-Powered Attic Fans: Actively draw hot air out of the attic.

Choosing the Right Roof Ventilation for Your Projects

Consider these factors when designing your roof ventilation:

  • Roof Size and Design: Calculate the required Net Free Ventilating Area (NVFA) based on your attic's square footage, roof type, and local building codes.
  • Climate: Adjust ventilation strategies accordingly in hot or humid climates to optimize moisture control.
  • Aesthetic Considerations: Choose vents that complement the overall look of the building.

Find Your Roof Ventilation Solutions at Division 7 Supply

Division 7 Supply offers a broad selection of roof ventilation products to suit your project needs. We carry a variety of intake and exhaust vents from trusted brands to help you optimize airflow and roof performance.

Let us help you design a balanced roof ventilation system for your next project. Contact us for expert advice and product recommendations.

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