Ceramic Tile Drip Edge Setup Matterhorn Steel Roofing.

https://touch-wiki.win/index.php/Floor_Tile_Drip_Side_Setup_Matterhorn_Steel_Roof_Covering.

Despite which layer you select however, at some point, long-term direct exposure to the elements will weaken the protective coating as well as you'll need to recoat. A simple recoat with a polymer finishing (Kynar