This is different from new roofs. As for new roofs, their tiles come coated from the manufacturer and are then put in place then bedded and pointed.
As for restoration, this involves the roof being cleaned, pointed and then painted to give an aesthetically pleasing look. However, it can sometimes look artificial and to give it a more natural look we clean, paint then point. Finally, by last using a Flexipoint compound of like colour to the roof colour but a shade lighter or darker, with a less gloss finish it gives a nice contrast between the pointing and tiles.