Terracotta tiles are an extremely durable and resilient tile. They are designed to with stand the harshest elements. Terracotta roof tiles over the years become infested with a green algae which is called lichen.
Roofs become so badly infested with lichen that the roof looks old and deteriorated beyond the point of cleaning, but because of their amazing strength and durability, with a good high pressure clean and re-pointing of the ridge capping they can easily be transformed back to their original colourful condition.
We have a 4 step process for terracotta roof restoration