First comes the standard chemical treatment with MossBoss and left for at least 24 hours to kill any moss, fungus and lichen, and to prevent regrowth.

The roof is then water blasted to thoroughly clean it to remove any loose,flaking or cracked paint, as well as dirt. Next, any broken or cracked tiles are replaced and mortar work can be
performed to repair loose ridges. Following this a protective concrete base coat is applied, then a further double layer coat of fast-drying pure acrylic roof paint in your colour choice