Static Roof Vents

Static vents (roof louvers, wall louvers and wind turbines) are inexpensive and popular with professional roofing contractors.

Design Considerations:

• According to federal guidelines, homes require 1 square foot of net free area (the total unobstructed area through which air can enter or exhaust a non-powered vent) for every 150 square feet of attic floor space. If balanced between intake and exhaust vents, the requirement is 1 square foot of net free area for every 300 square feet of attic floor space.
• Multiple roof vents are usually needed to provide the required net free area
• Must be spaced equally over roof to provide sufficient airflow along the entire roof sheathing

Roof Louvers From metal to plastic Air Vent makes a variety of roof louvers ranging from round, square and slant-back designs.

Wind Turbines Air Vent's Airhawk® wind turbines are available in both internally and externally braced styles.