AIR VENT ShingleVent II 12″x4′

ShingleVent II ridge vent installs on the peak of the roof allowing exhaust ventilation all along the roofline — end-to-end.

This product proves that outstanding beauty and performance can be combined. Design features include an external baffle and internal weather filter for optimum airflow and weather protection. Less than an inch in height, this molded, high-impact copolymer shingle-over ridge vent permits capping of the ridge with shingles like the rest of the roof.

The simple mathematics of balanced ridge ventilation system:

• According to most building codes, you need 1 square foot of ventilation for every 150 square feet of attic floor space.
• For new home construction that includes a vapor retarder, the minimum is 1 square foot of ventilation for every 300 square feet of attic floor space.
• If your vents are split between ridge vents and intake vents, the minimum requirement is also 1 square foot of ventilation for every 300 square feet of attic floor space.