Attic Ventilation Basics

When properly balanced, attic ventilation can provide many benefits, including improving home comfort and energy efficiency, as well as protecting against ice dams. Other advantages include reducing heat and moisture buildup and extending the longevity of roof shingles.

Planning Attic Ventilation

The International Code Council (ICC) recommends a minimum of at least one square foot of attic ventilation for every 150 square feet of attic floor space to achieve desired airflow. Attic ventilation should be evenly spaced and consist of a combination of intake and exhaust vents.

If your monthly utility bill is excessive, or ice dams are a frequent sight during the winter, contact a reputable roofing contractor in your area to schedule an appointment. They will check your attic and roof to determine whether well-balanced ventilation is needed in your home. They may also recommend attic insulation.

Attic Ventilation Products

Intake Vents

Intake vents are installed near the eaves and commonly consist of cornice vents, vented soffits, and mini louvers. The vents are evenly spaced to provide efficient air intake. Building codes typically require 50% of the ventilation to be near the eaves.

Exhaust Vents

Exhaust vents are installed on the upper portion of the roof. Products in this category include roof louvers, gable vents, and ridge vents. The latter are the most efficient as they provide uniform ventilation.

Turbine and Power Exhaust Vents

This category of attic ventilation products is naturally powered by either wind or solar. It is worth noting that electric turbine and power exhaust vents may also be available. These products draw air out of the attic to prevent heat and moisture buildup.

With more than sixteen years of experience, Jenesis Roofing, Inc. is the company to call for all your roofing needs. We specialize exclusively in servicing, repairing, reroofing, and installing roofs for residents in Denver and the surrounding areas. We also install gutters, pavers, and attic ventilation systems. Contact us today for a free quote at (303) 789-1505.

Roofing Questions?
Ask the Expert!

    Recent Posts