Learn why many San Diego tile roof leaks start below the tiles

https://telegra.ph/Tile-vs-Shingle-vs-Metal-Choosing-a-Roof-for-San-Diegos-Sun-Salt-Air-and-Rain-09-22

Learn why many San Diego tile roof leaks start below the tiles, where underlayment and flashing must manage water and protect the roof deck when tiles are breached or penetrated.