SBV 40 GV Series Slant Back Static Vents, 6-PackUnit available in mill, black, brown, weathered grey color. Static Roof Vents are an essential part to a balanced ventilation system in residential attic spaces. Our slant back vents are constructed of heavy duty galvanized steel and are fully screened to keep insects, birds, and rodents from accessing the attic space. Easy installation as the unit can be secured using approved roofing nails or staples for a stable install on your roof. Save on energy