Flare the edge of a spring-metal strip with a screwdriver to render a snug fit. Spring-metal strips V-shape or single are available in bronze, copper, stainless-steel, and aluminum finishes. Most manufacturers package spring-metal weatherstripping in rolls, and they include the brads necessary for installation. Although this kind of weather stripping seems like a simple installation, it does require patience. Spring-metal weather stripping fits into the tracks around the windows.
How To: Install Spring Bronze Weatherstripping | The Craftsman Blog
Nail set Step 1 Cut to Size Measure the door openings and using tin snips cut the weatherstripping to length. The weatherstrip needs to go in the rabbet that the door fits into when closed. There is a flat side and sprung side to spring bronze. The flat side goes on the interior and the sprung side faces the exterior so that the door compacts it as it closes.