Gable vents are an efficient way to remove heat and humidity from your attic or crawl space by allowing air to flow in and out of the space. These vents are customizable to fit your specific size requirements. They are available in white or ivory. We add an aluminum screen on the back. The nailing flanges are made of a 1″ x 1″ aluminum angle. Placing the angle on the front for a recessed mount or on the back for “J” channel installation. The vents feature a 1″ U-channel frame with open louvers in the middle. It’s worth noting that currently, 1/2″ round or circular vents are not available.