Amerimax 12 in. W X 10 ft. L Galvanized Steel Valley Flashing Silver

3 ounce copper asphalt laminated to a sheet of creped Kraft paper reinforced with fiber glass scrim to meet government requirements. Compatible with all pressure treated lumber use as a flashing or termite barrier. Lightweight, flexible, conforms to any surface will not corrode or degrade like aluminum flashing. Looks great on sills and trim flashing applications.