The Edge™ Vent is a shingle-over, roof-top installed intake vent that keeps the roofer on the roof controlling the project. The vent has a patented internal baffle and drainage system along with internal weather filter to provide three levels of weather protection. The Edge Vent can be installed on roofs with or without overhangs and be placed up the roof with open-soffit construction. As part of The Balanced System® for optimum attic ventilation, it provides 9 square inches of net-free area per linear foot. It also passed a stringent 30-day ice dam test. For more information, call 800-AIR-VENT or visit www.airvent.com.