The Louver is a kind of a shutter or blind that comes with horizontal slats that are angled to allow space for light and air but restrict rain and direct sunlight. Greenheck louvers are available in endless standard configurations. Each meets or exceeds the industry’s most stringent test performance standards and provide exceptional aesthetic appeal. Choose from extruded aluminum or galvanized steel louvers. All have a variety of accessories, blade, head and sill designs to fit your application. Most products are available in both standard and custom finishes and colors that complement building facades.