This new, patent-pending vent is made of high-quality galvanized metal. Its advanced aesthetic and discreet design offers the same performance as a regular 4-fin vent. Whether for a regular ventilation or cathedral roof, this model allows to evacuate and exchange the air in the attic on an ongoing basis. This system reduces the accumulation of heat and moisture in the attic. Openings shaped from the vent structure eliminate the need for long-term maintenance and prevent the intrusion of insects, birds and rodents into the Interior. To ventilate a surface of 1400 sq. ft. with attic, use an already pre-packaged set comprising 2 sections of 48″, 2 caps and a gasket. For a cathedral roof be sure to measure the length of the ridge. Order the number of 48″ sections required to cover the ridge with the number of seals and the two caps.