Stains on new roof

[liverboys]

It appears that with all the recent rain, our roof tiles are stained around under the chimney - possibly from the lead around it leaking. Does anyone have any suggestion as to how to get it off as it is quite unsightly?TIA

[vivandorron]

I wouldn't do anything. As time passes all the tiles will alter in colouring and appearance.Moss and algae could soon develop and the aged look will give character to your property.....In fact, if a lot of algae does develop, it will indicate a somewhat pure air because a polluted atmosphere destroys the spores...or so I'vebeen led to believe......Ron

[liverboys]

Many thanks Ron, I'll content myself with that - the less effort the better!