Roof installation accessories Tin standard flashings Gable flashing 8,49€ – 8,98€ Lower eaves flashing 6,58€ – 7,08€ Mitre plate 15,80€ – 16,80€ Outer sill 5,98€ – 9,52€ Ridge capping 10,49€ – 13,68€ Corner flashing 4,40€ – 5,70€