IronRidge Knockout Tile is a tile replacement mount that installs fast and works on flat, S, or W tiles, as well as, on roofs with battens or roofs that are battenless. Its simple base allows you to put it anywhere within the flashing pad on the rafter, and just punch a small hole in the flashing where it is needed—with no cutting or grinding. L-Foot included. Knockout Tile is fully tested to our rigorous standards, certified as a system with XR rail and covered by our 25-year warranty.