How to Tell if Dark Roof Marks Are Dirt, Mold, or Lichen
Living on the Sunshine Coast means enjoying abundant sunshine, coastal breezes, and a warm subtropical climate. However, this same environment—marked by high humidity, periodic heavy downpours, and coastal sea spray—creates the ultimate breeding ground for roof discoloration. If you look up at your roofline and notice dark streaks, splotches, or discolored patches across your concrete tiles, terracotta, or Colorbond sheeting, you are likely wondering what is causing it.