DIY Installation Steps for Pro Gutter Guard on Tile Roofing Step 1. Fix mesh to the gutter with a screw and roll out for 1.5 metres Step 2. Remove screw and fix the first trim to the gutter with self drilling screws and then roll out mesh a few metres and continue to fit trims Step 3. Make a U shaped cut, down to the edge of approximately the second last tile in the row, repeat for the other end of the row. Step 4. Trim the top of the mesh so it sits roughly 50mm above the second row of tiles. Step 5. Gently fold the mesh up without creasing it, so that the top of the mesh lies flush against the front of the tiles. Step 6. Using a chisel or large flathead screwdriver, gently lift the tiles and feed the mesh under the tiles, working clockwise around the house. Step 7. Tuck all the way along the row until you get to the U shaped cut you made earlier. Leave the last section un-tucked. Step 8. Cut the mesh around the corner tile, taking care to push it down flush with the edge of the hip. Step 9. Finish by sealing off the corner with a bead of silicon.