Will moss or algae be more visible or more of an issue on white paving?

Moss and algae can grow on any outdoor surface if there’s enough moisture, but they don’t stick easily to porcelain. Because porcelain is non-porous, moss and algae don’t get deep into the surface, making them easier to wash off. On white paving, green growth may be more noticeable than on darker colours, but regular cleaning with water or a mild detergent will prevent buildup.