Hi, I recently had one half of my house retiled with russel grampian tiles grey\black colour and the roofer fixed them down with galvanized nails which are now all streaking down the tiles and it looks awful, I know that we have not had much rain lately so I am hoping that in time it will wash away, I cannot live with it and am so annoyed with myself as a carpenter by trade but I am so busy with my own work and I just put my trust in the roofer can anybody assure me that it will go with a few months of rain or am I going to take them all off and do it again myself?
