Dougan Roof Coatings services the Wellington area for people that need their roofs refurbished. We use the Decragard (AHI) Roof Coatings formula. We also treat roofs to remove moss and lichen, and repaint and re-chip pressed metal tiles. We maintain all types of roofs. All roofs over 15 years old normally require some sort of maintenance or re-coating which many people do not realise is necessary.